This two-way frequency table gives the results of a screening test for heart disease conducted by determining the cholesterol le

Question

3 years ago

5

This two-way frequency table gives the results of a screening test for heart disease conducted by determining the cholesterol le

vel in the blood
samples of 750 patients.
Question 1
Using the two-frequency table, compute the probability of having high cholesterol. Or Phigh cholesterol)

Mathematics

1 answer:

Troyanec [42] · Answer 1 · 2022-02-06T12:46:34+03:00

Answer:

The probability of having high cholesterol = 0.496

Step-by-step explanation:

Given frequency data table

cholesterol level

Normal High Total

Heart diseases Yes 11 223 234

No 367 149 516

Total 378  372   750

Given data 

The  Cholesterol level is high n ( High cholesterol) = 372

Total n( S) = 750

The probability of having high cholesterol level

P( E) = $\frac{n(E)}{n(S)} = \frac{372}{750} = 0.496$