Yes. the first one is 24 degrees. the second one is 52. the third one is 74. i'm like 90% sure those are the answers.
ANSWER
0.0952
EXPLANATION
We have that Stephen surveyed 21 of his classmates and obtained the data in the table given.
To find the probability for which a randomly selected classmate has 3 credit cards in their wallet, we have to divide the number of people that had 3 credit cards in their wallet by the total number of people surveyed.
From the frequency table, we have that only 2 classmates had 3 credit cards in their wallets.
Therefore:
That is the answer.
1/3= .3333333
.3333333 x 5= 1.6666666
1.66666+ 7(5)= 1.66666 +35
36.666666