Calculate the marginal p.d.f.’s fx(x) and fy(y). Please remember to specify the interval  for x for fx(x) and the interval for y for fy(y): d. Are X and Y independent? Why or why not? e. Calculate Pr (X ≤ 0.25|Y ≤ 0.5

Q: Calculate the 13th and 64th percentiles of the data set shown below. 29 18 3 12 17 28 23 21 22 P13…

A: Given that

Q: Show that two random variables X, and X, with joint pdf, 1 |x, < 4, 2<x, <4 fx,„x, (x,x2) ={ 16…

A:

Q: What quartile is equivalent to percentile 75?

A: The 75th percentile is value below which 75% of data observations lie. Note : Since you have asked…

Q: Trends in student performance (you'll have to describe what type of times series pattern is present…

A:

Q: 18. Troy's Tire Mart has a replacement value of $965, 000 and is insured for $588, 000, with an 80%…

A:

Q: The population size of Batangas in 2015 is 2,600,000. This increased to 2,908,494 based on the last…

A:

Q: In 2020, the Philippine mid-year population is estimated at 109,581,078 people. That year, a total…

A: Given that: The Philippine mid-year population is estimated as 109,581,078 people in the year 2020.…

Q: Determine the critical value and illustrate the rejection region under the normal curve by using the…

A:

Q: Question 4   Compute the z score for a score of 90 on a test that has a mean of 92 and a standard…

A: We have given that,  Let X be the random variable from normal distribution with mean (μ) = 92,…

Q: It is assumed that the average Triglycerides level in a healthy person is 130 unit. In a sample of…

A:

Q: Given the null and alternative hypothesis below, identify the test of hypothesis to be use. Ho: μ1…

A: Given ; Given the null and alternative hypothesis below, identify the test of hypothesis to be use.…

Q: The mean of population is x

A: Mean is defined as Mean = Sum of observations/No. of observations

Q: The conditions for a sampling distribution of a sample proportion, when you do not know the true…

A:

Q: Try this with your statistics calculator, if you decreases the confidence level, the sample size…

A: Given : Margin of error, ME = 2.5 population standard deviation, σ = 21.3…

Q: Refer to the table below: Table 1. 1985 Philippine Statistics Report…

A: The given table is, The formula for calculating the Maternal Mortality Rate is,

Q: The data below is 12 observations of Fall semester student credit hours (x) and Spring semester…

A: We have given that,  X :- 6, 11, 16, 12, 7, 10, 8, 15, 13, 9, 5, 14 Y:- 3, 15, 13, 16, 9, 7, 4, 18,…

Q: In California, we need more rain to sustain the health of our natural environment, argriculture, and…

A: Inches of Rain (X) Frequency (f) X.f cumulative frequency(CF) 1 2 2 2 2 3 6 2+3=5 3 3 9…

Q: Use median and up/down run tests with z 2 to determine if assignable causes of variation are…

A: To determine whether any patterns are present in given data, the data need to must transform the…

Q: 8. Find out whether or not there is a dependency relation between sales and store location for the…

A: Null hypothesis, H0:there is no significant relation  between sales and store location Alternative…

Q: manager at FAB Bank claims that the mean monthly balance of credit card holders is more than 750 AED…

A:

Q: The IQ scores of 50 students are given below.   106 118 90 97 108 91 105 85 89 105 92 108 112 105…

A: We use 85-89 for the first class and use the same width for each subsequent class.

Q: 7) A box contains 500 eggs. On average, 0.6% of the eggs break by the time a box reaches a…

A: 7) By Poisson Distribution the value of its parameter a will be n*p where n= total number of items…

Q: Do the t-test and test the null hypothesis that the two means are equal  at the 95% confidence…

A: T test is used to measure the mean significance between the sample and population. It is used when…

Q: The General Social Survey is an annual survey given to about 1500 U.S. adults selected at random. A…

A:

Q: The nicotine patch is an FDA-approved medicine that can help people quit smoking. To test the…

A: Null hypothesis: A hypothesis of no difference is called as null hypothesis. It is denoted by H0…

Q: A credit card spending study shows that people tend to spend more when paying with a credit card…

A: The given 90% confidence interval is  (9000,10000) and (9100,9900) are given   In the t-distribution…

Q: The measures of center: and Measures of spread: and

A: The measures of centers are mean, median and mode

Q: A researcher wishes to examine the relationship between years of schooling completed and the number…

A: Given that

Q: Given the Bivariate Normal distribution parameters Hi = 2, µ2 = 2, ơ1 = 2, 02 = 7, p=0 a) Write down…

A:

Q: On the SAT exam a total of 25 minutes is allotted for students to answer 20 math questions without…

A: Given data : sample size, n =35 sample mean, x̄ = 23.5 sample standard deviation,s= 4.8…

Q: Find the regression equation, letting the first variable be the predictor (x) variable. Using the…

A:

Q: The weekly income of managers in a certain company is normally distributed with a mean of P50000 and…

A:

Q: The conditions for a sampling distribution of a sample proportion, when you do not know the true…

A:

Q: If applicable, use the appropriate test to determine the average nicotine content which differs. In…

A: Given data is: Keto Diet Gym No exercise Intermittent 9 11 11.5 13.25 9.5 10 12 11.5 8.25…

Q: Dario puts 44 marbles in a box in which 14 are red, 12 are blue, and 18 are yellow. If Dario picks…

A:

Q: From the given problem below, a. State the null and the alternative hypotheses b. Compute the test…

A: From the provided information, Sample size (n) = 50 Sample mean (x̄) = 122.50 Population standard…

Q: Agent, EXCEPT: Mode of transmission All of the above Primary agent responsible or ascertain cau O…

A: We have to select correct option, for Both question 1  is regarding agent 2  is regarding Swaroop's…

Q: This produces findings that are too high and too low in approximately equal amounts. O Both are…

A: Random Error: Random Error may be defined as the difference between the True value and estimated…

Q: The owners of a franchise of fast food restaurants want to study the relationship between annual…

A:

Q: If HO : μ 30 HA : μ #30 Ο HA : μ30 Ο all above Ο

A:

Q: a) The IQR is a measure of spread of the 50% of a set of data. b) In a set of data that contains 250…

A: Solution-: (a) The IQR is measure of spread of the .....50% of a set of data. (b) In a set of data…

Q: A nationwide job recruiting firm wants to compare the annual incomes for childcare workers in…

A: given data

Q: d solutions to one decimal place, if necessary. 45 35 16 15 27 23 43 23 22 44 15 15 30 15 le Rank of…

A: 1 15 2 15 3 15 4 15 5 16 6 22 7 23 8 23 9 27 10 30 11 25 12 43 13 44 14 45

Q: he College of Engineering of a State University gives an entrance exam to incoming freshmen. Those…

A:

Q: . "It is claimed that a car is driven on the average less than 18100 kilometers per year with a…

A:

Q: In a Science test, the mean is 46 and the standard deviation is 4. Assuming the scores are normally…

A:

Q: The data below show the weights of 14 different dogs that visited a veterinarian on one day.…

A:

Q: The null hypothesis is that the laptop produced by HP can run on an average 120 minutes without…

A: We have given the following information.  Hypothesized population = 120 Standard deviation = 25…

Q: QUESTION 5 Given the following information 1. The linear regression trend line equation for the…

A:

Q: A:57 16 27 39 5356 61 80 101 105 B:04 16 21 41 43 57 78 83 90 95 the B is more active True O False O

A: Solution-: A: 5,7,16,27,39,53,56,61,80,101,105 and  B: 0,4,16,21,41,43,57,78,83,90,95 The B is more…