If x = -10, then x2 = 100. %D x2 = 100, SO X = -10. %3D %3D true false

Q: ) Danny has scored 78, 74, and 72 on the first three exams in his math class. If the standard…

A: Calculate total marks obtained in 3 exam

Q: Which of the following would lead to the best comparative exam score? a. x= 65, µ=60 and the σ=2 b.…

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Q: What is the value of d?

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Q: Kevin scored at the 70th percentile on a test given to 9920 students. How many students scored lower…

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Q: Which problem would you use to find the value of csc 47 ? 1 0.7071 1 0.7314 0.6820 1 1.0724

A: We find value of csc 47 . We know that the trigonometry ratio-  Sinx = 1/cscx .

Q: #5 (a): If r = h(4 h5 – 5) find the percentage error in r at h=1, if the error in h=0.04.

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Q: If P(E) = 0.842, what is the value of P(E)?

A:

Q: For a population with μ = 80 and σ = 10,what is the X value corresponding to z = -0.50?

A: Given information Mean (µ) = 80 Standard Deviation(σ) = 10 Z = -0.50 Z-score is given by the…

Q: If X ~ N(10,3), find the X value that is the 16th percentile.

A: From the provided information, Mean (µ) = 10 Standard deviation (σ) = 3

Q: If 12.1 percent of her students failed the course and received F's, what is the maximum score among…

A: The solution is given below in the next step:

Q: the mean = 146, and s =  35 Question #3 A percentage of female students with scores between 41 and…

A: From the provided information, Mean (x̅) = 146 Standard deviation (s) = 35

Q: Find the n amount, given that with a 95 percent confidence the error is by three percentage points…

A: Formula : Margin of error: ME=Zα/2 * √p̂(1-p̂)/n

Q: 29. If P(E) = 0.842, what is the value of P(E)?

A: If the probability of a event a happening is x  then the probability of not happening of that even…

Q: А, .B D E.

A:

Q: If r = h(4 h³ – 5) find the percentage error in r at h=1, if the error in h=0.04. %3D

A: r = h(4h5-5)h = 1    , error  h = 0.04

Q: On a psychology exam with a µ = 76 and σ = 12,  Tom scores at the mean,  Mary had a score of X =…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: Is all variation necessarily numerical?

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Q: n=550 x=440 90% confidence

A: Given that,  n=550 x=440  The sample proportion is, Critical values: By using the standard normal…

Q: s of (b) and (c) are the same, which drug appears to be better? If not, explain how the discrepancy…

A: Given:   Woman Cure Rate Men Cure Rate Drug A 5 of 100 cured 5% 400 of 800 cured 50% Drug B…

Q: The reported CORONAVIRUS cases was 1200 in Oman on MARCH, 2021. It was expected to raise to around…

A: The cases were 1200 expected to rise to 1800  ,the cases actually rose to 2500  Expected value is…

Q: If X-t(12), then the (97.5)th percentile of X is closest to: О а.218 O b. 2.44 O c. -2.44 O d. -2.18…

A: Probability distributions are of 2 types, discrete and continuous. The t distribution is a…

Q: If the the true value = 11.5140 and the true Error = -0.1822 then the Relative True Percentage…

A: This is a problem of Numerical Analysis.

Q: Kevin scored at the 70th percentile on a test given to 9940 students. How many students scored lower…

A: Given Kavin got 70 percentile. Total students are 9940.

Q: This year, 75% of the graduating class of Harriet Tubman High School had taken at least 8 math…

A:

Q: raph of the e table Using VE of 45.

A: We need to sketch of the graph of  r=sin 3θ Where θ are multipliers of 45°.

Q: Angela took a general aptitude test and scored in the 92nd percentile for aptitude in accounting.…

A: In the question given, Angela has scored in the 92nd percentile for aptitude in accounting.

Q: In a study, the rate of success of initial vaccination among 330 subjects receiving the 1:10…

A: Given: Sample size of subjects (n) = 330 Sample proportion or success rate p^=0.971 Hypothesized…

Q: g. P(z<zo) = 0.5 h. P(zszo) = 0.0091

A: Given:  z be the standard normal variate N(0,1)  to find value of Z0  g): p(Z&lt;Z0)=0.5  h):…

Q: What is the value of s e {0,2,4} S?

A:

Q: If P = 3c⁶ - 6c², find the percentage error in P at c= 1 if the error in c is 0.05

A:

Q: ep 5 of 5: Find the percentage of students that scored higher than 80.5. Round your answer to the…

A: Given:  Histogram of score with corresponding frequency Score:     70.5-75.5, 75.5-80.5, 80.5-85.5,…

Q: ) Convert each exam score to a standard score z. ) On which test did he do better compared to the…

A: It is given that For accounting, score = 116, mean = 102, SD = 14 For biology, score = 82, mean =…

Q: 6. [~Q ^ (P → Q)] → ~P F F F F

A:

Q: Use the following scores to find the value of Ex= 3 4 2. 2.

A: Given: x 3 2 4 2

Q: Geometry Question

A: We will use the fact that corresponding angles on parallel line made by a straight line are equal to…

Q: In a random sample of college freshmen, the proportion who use text messaging daily was 0.93. In a…

A: Given, In a random sample of college freshmen, the proportion who use text messaging daily was 0.93…

Q: In a class of 80 students, Heather has a rank of 16. At what percentile is she? Heather has a…

A: Heather has rank 16 in a class of 80 students. The number of students having rank after Heather is,…

Q: If CV for an English Test is 62.5% and the CV for a History test is 62.5% , Compare the variation of…

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Q: A group test was administered and has the ff. results: Zac's score Subject x Physics sd 60 10 85 Mat…

A: Z-score : The Z-score shows however way a price deviates from the quality deviation. The Z-score,…

Q: What percentage of pregnancies last beyond 254 days? P(x > 254 days) = P(z >

A: Here, µ = 268, σ = 14.

Q: Find the value of x. AA 16 12 10 %23 A. 7.5 В. 8.9 о С. 6.25 D. 5

A:

Q: µ = 9 has Σ X = 54. How many scores are in the populatio

A: Given that   A population with mean (μ) = 9 Summation of data values  Σ X = 54   We know that Mean =…

Q: SOLVE FOR THE FOLLOWING with complete solution:  1, 3, 4, 5, 5, 6, 8, 8, 8, 9 A. 1st Quartile B.…

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Q: The given population is 3476, n = 528, what will be the value of e (margin of error)? Show clear…

A:

Q: S R

A: Given:

Q: Use the following scores to find the value of (Ex)² = %3D 4 3. 2.

A:

Q: In a biology study, the appearance of an animal when carrying a certain gene is recorded. Assume…

A: We have to find the number of animals having Gene B.

Q: A. y В. 10 10 9. 8. 6. 12345 67 8910 123456789 10 C. D. y 10 6. 8. 6. 3 2. 23456789 10 1234567 8 9…

A: Graph problem....