this is binomial distribution with parameter n=10 and p=0.28
a)P(X=2) =10C2(0.28)2(0.72)8 =0.2548
b)
P(X>2)=1-P(X<=2) =1-(P(X=0)+P(X=1)+P(X=2))=1-0.4378 =0.5622
c)
P(2<=X<=5)=P(X=2)+P(X=3)+P(X=4)+P(X=5)=0.7828
28% of college students say they use credit cards because of the rewards program. You randomly...
32% of college students say they use credit cards because of the rewards program. You randomly select 10 college students and ask each to name the reason he or she uses credit cards. Find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. If convenient, use technology to find the probabilities.
31% of college students say they use credit cards because of the rewards program. You randomly select 10 College students and ask each to name the reason he or she uses re- cards. Find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. If convenient, use technology to find the probabilities.
38% o college students say they use credit cards because of the rewards program You randomly select 10 college students and ask each to name he reason he she uses credit cards. Find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two (b) more than two and (c) between two and five inclusive. If convenient, use technology to find the probabilities. (a) P(2)-□ (Round to the...
31%of college students say they use credit cards because of the rewards program. You randomly select 10 college students and ask each to name the reason he or she uses credit cards. Find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. If convenient, use technology to find the probabilities. (a)P(2)= (Round to the nearest...
K uncfsu.instructure.com/courses/27463/modules/items/871525 > Modules > MathXL MathXL All Assignments 202030.STAT202.044 Tanerka Reader & | 07/30/20 2:17 Homework: Section 4.2 Score: 0.33 of 1 pt 7 of 7 (7 complete) HW Score: 85.71%, 6 of Question Help 4.2.21 28% of college students say they use credit cards because of the rewards program. You randomly select 10 college students and ask each to name the reason he or she uses credit cards Find the probability that the number of college students who...
command or a command that performs the same function as "list". See previous templates for examples. Write one R program to answer the following questions: 1.48% of men consider themselves professional baseball fans. You randomly select 10 men and ask each if he considers himself a professional baseball fan. Determine the probability that the number of men who consider themselves baseball fans is exactly eight. Fifty-five percent of households say they would feel secure if they had $50,000 in savings....
38% of adults say cashews are their favorite kind of nut. You randomly select 12 adults and ask each to name his or her favorite nut. Find the probability that the number who say cashews are their favorite nut is (a) exactly three, (b) at least four, and (c) at most two. If convenient, use technology to find the probabilities. (a) P(3)equals 0.163 (Round to the nearest thousandth as needed.) (b) P(xgreater than or equals 4)equalsnothing(Round to the nearest thousandth...
9 36% of adults say cashews are their favorite kind of nut. You randomly select 12 adults and ask each to name his or her favorite nut. Find the probability that the number who say cashews are their favorite nut is (a) exactly three, (b) at least four and (c) at most two. If convenient, use technology to find the probabilites. (a) P(3) = (Round to the nearest thousandth as needed.) (b) P(x24)= (Round to the nearest thousandth as needed.)...
41% of adults say cashews are their favorite kind of nut. You randomly sele t12adults and ask each to name his or her favorite nut. Find the probability that the number who say cashews are their favorite nut is (a) exactly three. (b) at least four, and (c) at most two. If convenient, use technology to find the probabilities. 5, (a) P(3) (b) P/x 2 4) (c) P(x s 2) Round to the nearest thousandth as needed.) (Round to the...
New Survey A survey was conducted two years ago asking college students their top motivations for using a credit card. To determine whether this distribution has changed, you randomly select 425 college students and ask each one what the top motivation is for using a credit card. Can you conclude that there has been a change in the claimed or expected distribution? Use a =0.05. Complete parts (a) through (d). Response Old Survey % Rewards 28% Low rates 24% Cash...