Typically, 10% of students make a D on their tests, 60% make a C on their test, and 30% make an A. Mrs. Smith uses a random-number table to find the experimental probability that of 5 students', at least 3 will make a C. The digit 0 represents students who make a D. The digits 1,2,3,4,5, and 6 represent students who make a C. The digits 7,8, and 9 represent students who make an A.

Question

Typically, 10% of students make a D on their tests, 60% make a C on their test, and 30% make an A. Mrs. Smith uses a random-number table to find the experimental probability that of 5 students', at least 3 will make a C. The digit 0 represents students who make a D. The digits 1,2,3,4,5, and 6 represent students who make a C. The digits 7,8, and 9 represent students who make an A.

Find the experiment that of 5 students at least 3 will make a C.
A:7/20
B:9/20
C: 11/20
D:13/20

Answer 1

I would think the answer would be D because at least 60% have to make a C. Given the fractions D is the only fraction with higher than 60%.

Mathematically evaluating 3/5 is 60%, 20 is the common denominator in every answer choice. 20 is a multiple of 5, so 20/5 = 4.
Multiply 4 *3 =12

At least 12 students must have a C.

Only answer that fits is D

Answer 2

This answers are different for Connexus users. Don't use them.

Answer 3

THE ANSWERS CHANGE FOR EVERYONE DONT SAY PEOPLE ARE LYING THOSE COULDVE BEEN THE ANSWERS FOR THEM

Answer 4

please i cant get this wrong

Answer 5

well no, thats why i'm asking

Answer 6

OK, i know why your here, your not the sharpest tool in the shed. but the test is randomized so all i can say is, GOOD LUCK

Answer 7

he's wrong, this is the wrong test

Answer 8

wOw, thIs Is sAd. 👀💀

Answer 9

The answer to the question is B: 9/20.

Answer 10