The following contingency table gives the results of a sample survey of Sowetan male and female respondents regarding their pref

Question

2 years ago

13

The following contingency table gives the results of a sample survey of Sowetan male and female respondents regarding their pref

erred mobile phone service provider.
What is the probability of selecting a respondent who does not prefer Cell C?

a.
0.2250

b.
0.50

c.
0.3750

d.
0.65

e.
0.7750

Mathematics

1 answer:

zepelin [54] · Answer 1 · 2023-09-30T21:00:48+03:00

The probability of selecting a respondent who does not prefer Cell C is 0.775

<h3>How to determine the probability?</h3>

The complete question is in the attached image

From the attachment, we have

Prefer cell C = 90

Total = 400

So, the number of respondents that do not prefer cell C is

Do not = 400 - 90

Do not = 310

The probability is then calculated as:

P = 310/400

Evaluate

P = 0.775

Hence, the probability of selecting a respondent who does not prefer Cell C is 0.775