The number of students in math class who play sports is a random variable with the following probability distribution given below: x 0 1 2 3 4 P(x)  .2 .1 (intentionally left blank) .25 .15   a. Find     [answera] b. Find 

A student takes a multiple-choice test with 4 questions and guesses randomly at each answer. Each question has 3 choices with only one correct choice.   a. Find the probability that they get exactly three correct answers. Provide TI Command/Coding: [T1] Numerical Answer= [answera] (round to three decimal places as needed) b. Find the probability that they get fewer than three correct answers. Provide TI Command/Coding: [T2] Numerical Answer= [answerb]  (round to three decimal places as needed)   c. Find the probability that they get at least three correct answers.  Provide TI Command/Coding: [T3] Numerical Answer = [answerc] (round to three decimal places as needed) 

Which of the following is a distinct advantage of exporting?

I understand that this exam is “open-note”, but not “open-friend”. I certify that I will not receive or give unauthorized aid while taking this exam, which includes but is not limited to online search engines, websites, and tutoring services.    I certify that I am completing this exam myself with no outside assistance by typing my full name here. 

A research institute poll asked respondents if they felt vulnerable to identity theft. In the​ poll, n=901 and  x=538 who said​ “yes.” Use a  90% confidence level (critical value is 1.65)   a. The point estimate is   (round to three decimal places as needed) 

Two friends, Jess and Mateo, are attempting to keep track of (record) the number of coffee drinks they consume on a daily basis for one week.    Mateo consumes 1 drink every other day.  So for example, on Monday she will have 1 drink of coffee and the next day she will have zero drinks, etc. and the pattern continues   Jess consumes  3 drinks of coffee every day      Explain who has the greater standard deviation and why.     

Assume that women’s heights are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. If 15 women are randomly selected,   a. find the probability that they have a mean height between 61.5 inches and 63.5 inches. TI Command/Coding: [C1] Numerical Answer= [answera] (round to three decimal places as needed)    b. find the probability that they have a mean height less than 61.5 inches or more than 63.5 inches. TI Command/Coding:[C2] Numerical Answer= [answerb] (round to three decimal places as needed)   

Two friends, Jess and Mateo, are attempting to keep track of (record) the number of coffee drinks they consume on a daily basis for one week.    Jess consumes 1 drink every other day.  So for example, on Monday she will have 1 drink of coffee and the next day she will have zero drinks, etc. and the pattern continues   Mateo consumes  2 drinks of coffee every day.      Explain who has the greater standard deviation and why.         

The following table represents the age when an award was won. Use this table to answer the following questions     Class limits Frequency 10-19 31 20-29 33 30-39 13 40-49 2 50-59 6 60-69 2 70-79 2    

If a 14-sided fair die that is numbered from 1-14 is rolled once, find the probability of getting: a. P(A number less than 6 or at least 10). [answera]    (round to three decimal places as needed)  b. P(A number less than 6 and at least 10)    [answerb] Type an integer or a decimal. Do not round     c. True or False ,