Question: Please answer this problem and show work so i can undertsand A study was conducted of persons involved in car crashes. Randomly selected sample results

Please answer this problem and show work so i can undertsand

A study was conducted of persons involved in car crashes. Randomly selected sample results are summarized in the table below.

side airbags no side airbags Total
Seriously injured 34 250
No serious injury 138 25
Total

a) Fill in the column and row totals. What was the sample size? b) What is the probability that someone received a serious injury?

c) What is the probability that someone received a serious injury given their car had side airbags?

d) What is the probability that someone's car did not have side airbags and received a serious injury?

e) Determine if receiving serious injuries and having side airbags are independent events? Justify your answer.

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