Q: 5 X - 10 -5 10 - 10 -5 5 10 – 5 -5 -10f - 10 y y 10 10 5 X X - 10 -5 10 -10 -5 10
A: Graph of given equation
Q: 0 ) 3 3 9 7 3 Weight (Kg) 52 85 68 82 88 60 85 50 64 59 57 66 79 52 76 59 88 50 77 73 49 56 72 87 52…
A: The objective is to determine the Pearson's correlation coefficient for weight and study hours.
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Q: |1 2 3 0 1 1 1 (g) 0 0 1 3 100 2
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Q: а (За — 9) - 10(9 - З2) 6. 3x О (3г — 9)(г + 10) О (Зх +9)(г — 10) (3x О (3х — 9)(г - 10) о (Зх +…
A: Given x (3x - 9) - 10 (9 - 3x)
Q: Marks Number of Students 0-20 10 20-40 22 40-60 35 60-80 28 80-100 LO
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Q: log, 16 log4 2 logg 8 log4 8 log, 8 log49 7 log5 (-25) log3 9 log, 25 log 2 log 10,000 log, 125
A:
Q: x + 5 y 10 10 5 5 -10 – 5 10 10 10 – 10 -10 y 10r 10 5 5 X 10 -10 5 10 -10 -5 -10 - 10
A: Given query is to find the graph of the function.
Q: AX1 AX2 -4-2 3 1 СЕВЕ -2-7 6 2 1 2 6 -1 -4 -2 3 -2 -7 6 1 2-6 -4 -2 3 -2-7 6 1 2 6 Ax3 = 0 3 100 JT…
A: Here we have to verify that λi is an eigenvalue of A and that xi is a corresponding eigenvector .
Q: 3 (4 3 (4 Σ 4 k=1 7 9.
A:
Q: 10 -5 -10 -5 10
A: Since we know that graph of exponential function is,
Q: 10 -5 10 -5 -10
A:
Q: 7 1 -4-8 -1-7 -10 2 [E [G -4 2 15 -10 4 -3 0 [E] + [G] =
A:
Q: Station 1 Station 2 1,500 1,200 y = 160x 900 (4, 772) where y is the total number of people and x is…
A: calculate the different value of x
Q: The graph below represents a violation of the homogeneity of variance assumption. True or False?
A: Homogeneity of variance: It is the assumption that variance within each of the populations is equal.
Q: 9 (t) = {-2₁ (3, 0 ≤t≤2- 2+ ≤t≤ 5-
A:
Q: log3 (9) + log3(81) log3(. %3D log3 () + log3(81) log3(. log5(5) + log5(1) log5(.
A:
Q: 5.) (x - 5)(x + 9) = 0 6.) (x+ 3) (x + 2) = 0 7.) (x – 11)(x - 4) = 0 8.) (x - 1)(x + 6) = 0
A:
Q: [6 -8] 8. A = 10 20) [ 5 15 9. -3 6 9 12
A:
Q: -6 -2 3 -9 -4 -8 8 -5 [G] = [4] = -5 4 -10 -6 1 -7 7 1 [G] - [A] =
A:
Q: (9) y-) 1아 1아 -10 10 -10 10 -10 -10 1아 1아 -10 10 -10 -10
A: Consider the given graph of f(x).
Q: 2 2 4 0 1 3 0 1 1 00 A = |4 1 1 0
A: X=72-1-1
Q: 4 -2 3 1 3 2 15) - 2 1 Ans. -3, 2 ; 5, 0 1 2 2
A:
Q: 7- 10-9-8-7 6 -5 4 -3 -2 89 10 10 6 子24
A:
Q: 9- 10' is how many times as large as 3 10? OA. 3-104
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Q: Class Frequency 12 0- 10 10 – 20 14 20 – 30 16 30 – 40 28 40 – 50 10 50 – 60 8.
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Q: -3 -2 10 0 -8 4 -8 8 10 -5 -9 -5 -6 4 7 -5 -4 2 3 [G] 3 -8 -6 1 -2 [B : 10 -3 1 4 8 3 9 4 9 1 -10 2…
A: In this question we have to solve the given operation on matrix.
Q: 12 -10 4 10 -4 -15 -70 8 -30 16 -13 -1 -72 5 0| 9 R
A: 12 = N-10 = O4 =V10 =E-4 =L-15 =C-70 =O
Q: 10 00 N 6 5 3 2 + -10-9-8-7 -6 -54 -3 -2 -1 23 y -5 -7 -8 -9 -10+ 72 3 4 x 5 6 7 8 9 10 La
A:
Q: 5 x + 3 -15 10 5 10 15 20 6. x + 3 x +3 -10
A: The given graph is-
Q: . ᴛʜᴇ ꜰᴏʟʟᴏᴡɪɴɢ ᴀʀᴇ ᴅɪꜱᴄʀᴇᴛᴇ ʀᴀɴᴅᴏᴍ ᴠᴀʀɪᴀʙʟᴇꜱ ᴇxᴄᴇᴘᴛ: ᴀ. ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏꜰ ɢɪʀʟꜱ ɪɴ ᴀ ᴛʜʀᴇᴇ-ᴄʜɪʟᴅ…
A: As per our company guidelines we are supposed to answer only first question. Kindly repost other…
Q: 4 3 2 1 ++x 1 2 3 4 5 6 7 8 9
A: Graph : Consider the graph on interval on given interval 0,3 , f'(x)=0 i.e slope is zero on given…
Q: Number of States Population Range (millions) 0-4 25 5-9 15 10 14 6. 15 19 20-24 ERA 1 25- 29 30-34…
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Q: 1 2 3 4 5 6. 7 8 f(x) 4 9 7 2 3 6 2 g(x) 59 75 9 3 9 8 4
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Q: 10 -10 -5 1 10 x -5 -10
A:
Q: The average age of senior high studenĖs is 20.8 years. Two-tailed One -tailed The average salary of…
A: Given: a) Average age is 20.8 years b)The average salary is less than 25300 c)Average age is greater…
Q: -5 - V25 Simplify without using a calculator. The result is
A: Given -5-255=-5-55 (since 25=5 )
Q: 10 -10 -5 1 5 18 x -5 -10
A:
Q: 9.03% Average Yield-to-Maturity of 8 Years to Maturity Bonds 9.47% . 9.28% I am having trouble…
A: *answer: year, 5% annual pay coupon bond with YTM= ??? Comparing this bond with the following…
Q: 0-0.9 40 1.0-1.9 19 2.0-2.9 15 3.0-3.9 20 4.0-4.9 12 5.0-5.9 11
A: Since the question has multiple sub parts we will solve the first part only. Please resend the…
Q: 3 1 2 5 x ( +
A:
Q: 10- 9+ 8+ 3- 1+ 十 -10-9-8-7 -6-5-4-3-2 –1 1 2 3A -1+ +→ x 7 8 9 10 4 5 -2+ -3+ -4+ -5+ -6+ 8+
A: Graph of the function f(x) is
Q: -6 > 2 x+3 Show your work: O (-6] O (-6, 00) O -6, 3) O (-0, -6) U (-3, 0)
A:
Q: Ages Number of personnel in a company (t) fxm 38-42 4 33-37 7. 28- 37 33- 27 10 18-22
A: Frequency of an observation is the number of times the observation is repeated in the data set which…
Q: 13 15 19) 2 (5 – 7k) 20) 2 (10т - 14) k-1 10 13 21) 2(2k – 12) 22) Σ(6-3) k-1 i-1
A: using the formula ∑1nr=nn+12∑1n1 = n
Q: Age Number (millions) 25-34 35-44 45-54 55-64 24.3 30.6 32.7 26.6
A: Given, Age Number 25-34 24.3 35-44 30.6 45-54 32.7 55-64 26.6
Q: 5 6 -2 5 7 X2 -11 8 -9 -5 3 X3 6 3 1 7 Lx4 4
A: Given,
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
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- 2. A leading researcher in the study of interstate highway accidents proposes that a major cause of many collisions on the interstates is not the speed of the vehicles but rather the difference in speeds of the vehicles. When some vehicles are traveling slowly while other vehicles are traveling at speeds greatly in excess of the speed limit, the faster-moving vehicles may have to change lanes quickly, which can increase the chance of an accident. Thus, when there is a large variation in the speeds of the vehicles in a given location on the interstate, there may be a larger number of accidents than when the traffic is moving at a more uniform speed. The researcher believes that when the standard deviation in speed of vehicles exceeds 10 mph, the rate of accidents is greatly increased. During a 1-hour period of time, a random sample of 50 vehicles is selected from a section of an interstate known to have a high rate of accidents, and their speeds are recorded using a radar gun. The data…At pandemic time of COVID 19 surveys are conducted in two townships which fall into the same Lusaka city. In Chawama, 175 tested positive out of a sample of 318 who were tested for COVID 19. In Kabulonga, 143 tested positive out of a sample of 307 who were tested for COVID 19. At the 5% level, is there a difference between the proportions of those who tested positive in each areaA scientist is studying the relationship between stomach aches and headaches among students. On her survey, she asked if the participant had headaches that could be classified as “sudden,” “chronic,” or “none.” The survey also asked if the participant had stomach aches with answers of “yes” or “no.” From the survey she found: 14% have sudden headaches; 22% have chronic headaches; 15% have stomach aches; Of those with stomach aches, 1⁄3 have sudden headaches. Of those with no headaches, 1⁄8 have stomach aches. What is the probability that a randomly selected student from the survey did not have stomach aches, but they do have chronic headaches?
- Suppose that 73.2% of all adults with type 2 diabetes also suffer from hypertension. After developing a new drug to treat type 2 diabetes, a team of researchers at a pharmaceutical company wanted to know if their drug had any impact on the incidence of hypertension for diabetics who took their drug. The researchers selected a random sample of 1000 participants who had been taking their drug as part of a recent large-scale clinical trial and found that 718 suffered from hypertension. The researchers want to use a one‑sample ?z‑test for a population proportion to see if the proportion of type 2 diabetics who have hypertension while taking their new drug, ?p, is different from the proportion of all type 2 diabetics who have hypertension. They decide to use a significance level of ?=0.01α=0.01. Determine the value of the ?z‑test statistic. Give your answer precise to two decimal places. Determine the ?-valueP-value for this test. Give your answer precise to three decimal places.A report in LTO stated that the average age of taxis in the Philippines is 9 years. An operations manager of a large taxi company selects of 40 taxis and finds the average age of the taxis is 8.2 years. The of the population is 2.3 years. At can it be concluded that the average age of the taxis in his company is less than the national average?An organization published an article stating that in any one-year period, approximately 7.5 percent of adults in a country suffer from depression or a depressive illness. Suppose that in a survey of 100 people in a certain town, six of them suffered from depression or a depressive illness. Conduct a hypothesis test to determine if the true proportion of people in that town suffering from depression or a depressive illness is lower than the percent in the general adult population in the country. 1. Enter your answer to two decimal places. p' = 2. Calculate ?x. (Round your answer to three decimal places.) 3. Find the p-value. (Round your answer to four decimal places.)
- According to one survey taken a few years ago, 32% of American households have attempted to reduce their long-distance phone bills by switching long-distance companies. Suppose that business researchers want to test to determine if this figure is still accurate today by taking a new survey of 80 American households who have tried to reduce their long-distance bills. Suppose further that of these 80 households, 23% say they have tried to reduce their bills by switching long-distance companies. Is this result enough evidence to state that a significantly different proportion of American households are trying to reduce long-distance bills by switching companies? Let α = .01.According to one survey taken a few years ago, 32% of American households have attempted to reduce their long-distance phone bills by switching long-distance companies. Suppose that business researchers want to test to determine if this figure is still accurate today by taking a new survey of 85 American households who have tried to reduce their long-distance bills. Suppose further that of these 85 households, 26% say they have tried to reduce their bills by switching long-distance companies. Is this result enough evidence to state that a significantly different proportion of American households are trying to reduce long-distance bills by switching companies? Let α = .01. Appendix A Statistical Tables (Round your answer to 2 decimal places.) The value of the test statistic is enter the value of the test statistic and we choose between reject and fail to reject the null hypothesis .In the oil-wildcatting problem (book chapter 7), suppose that the company could collect information from a drilling core sample and analyze it to determine whether a dome structure exists at Site 1. A positive result would indicate the presence of a dome, and a negative result would indicate the absence of a dome. The test is not perfect, however. The test is highly accurate for detecting a dome; if there is a dome, then the test shows a positive result 99% of the time. On the other hand, if there is no dome, the probability of a negative result is only 0.85. Thus, P(+ | Dome) = 0.99 and P(- | No Dome) = 0.85. Use these probabilities, the information given in the example, and Bayes' theorem to find the posterior probabilities P(Dome | +) and P(Dome | -). If the test gives a positive result, which site should be selected? Calculate expected values to support your conclusion! If the test result is negative, which site should be chosen? Again, calculate expected values
- A cohort study was conducted over five years among 200 trial attorneys and general practice attorneys after stringent tort law reform, to see how many would develop heart conditions over time. In total, 50 attorneys developed heart disease. It was found that 40 who developed disease practiced trial law, while 10 who developed disease did not practice trial law. One hundred (100) who did not develop disease also did not practice trial law, and 50 who did not develop disease practiced trial law. Set up the 2 x 2 table and calculate the appropriate rate of riskIf a study determines the difference in average salary for subpopulations of people with blue eyes and people with brown eyes is NOT significant, then the populations of blue-eyed people and brown-eyed people are ________ different salaries. a) unlikely to have b) very unlikely to have c) guaranteed to have d) guaranteed to not have12% of all Americans suffer from sleep apnea. A researcher suspects that a higher percentage of those who live in the inner city have sleep apnea. Of the 349 people from the inner city surveyed, 45 of them suffered from sleep apnea. What can be concluded at the level of significance of αα = 0.05? Thus, the final conclusion is that ... The data suggest the population proportion is not significantly larger than 12% at αα = 0.05, so there is not sufficient evidence to conclude that the population proportion of inner city residents who have sleep apnea is larger than 12%. or The data suggest the population proportion is not significantly larger than 12% at αα = 0.05, so there is sufficient evidence to conclude that the population proportion of inner city residents who have sleep apnea is equal to 12%. or The data suggest the populaton proportion is significantly larger than 12% at αα = 0.05, so there is sufficient evidence to conclude that the population proportion of inner city…