Question

A box is filled with black (B), white (W), red (R), green (G), and pink (P) phone cases. A phone case is selected at random.

What is the sample space for this experiment?


S = {B, W, R}

S = {B, W, R, G, P}

S = {G, P}

S = {B, R, G, P}

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Twenty-four students took a test. Fourteen students earned an A and 10 students earned a B. A student will be randomly chosen.


What is the probability that the student earned an A on the last test?


Enter your answer as a fraction, in simplest form, in the box.

Answer 1

ANSWER 1 :

Sample Space ( S )= {B, W, R, G, P} Option (ii)

Step-by-step explanation:

There are five types of phone cases. Colors of the phone cases are Black, White, Red, Green, Pink.

One phone case is selecte as random, in this case we have 5 choices to select one phone case at a time.

So, Sample space is S = {B, W, R, G, P} Option(ii)

Final answer.

Answer 2 :

Probability for student earn grade A =
`(7)/(12)`

Explanation :

There are total 24 students in a class.

All student appeared in a test.

14 students are got grade A

and 10 students are got grade B.

One student choose at random whose grade is A.

Probability for selected grade A student = (total students of grade A)/(Total number of student in a class)

Probability for selected grade A student =

Final answer.

Answer 2

The Sample Space for the experiment is {B, W, R, G, P}. :) The answer to the second question is 7/12.
Hope this helps!