The table shows vacation preferences of families with children under 16 and over 16:

Summer vacation
Camping Traveling out of state Activities in local area Row totals
At least one child under 16 22 12 36 70
All children 16 or older 17 45 20 82
Column totals 39 57 56 152

Sharon mistakenly calculated the marginal relative frequency for traveling out of state to be 57 out of 100 or 57%. What should Sharon have done, and what is the correct answer?

Question

The table shows vacation preferences of families with children under 16 and over 16:

Summer vacation
 	Camping	Traveling out of state	Activities in local area	Row totals
At least one child under 16	22	12	36	70
All children 16 or older	17	45	20	82
Column totals	39	57	56	152


Sharon mistakenly calculated the marginal relative frequency for traveling out of state to be 57 out of 100 or 57%. What should Sharon have done, and what is the correct answer?

anonymous · Answer

a. She should have divided 57 by 152: 37.5%
b. She should have divided 12 by 57: 21%
c. She should have divided 45 by 57: 79%
d. She should have divided 45 by 82: 55%
im completely lost please help!

anonymous · Answer

@ganeshie8

jim_thompson5910 · Answer

IF the grand total was 100 (bottom right corner), then 57/100 would have been correct

however, there are 152 families total and NOT 100