Question

in a sample of 200 households in a colony, two brands of hair oils A and B are applied by 90 females. Further, 60 females and 70 males are using brand A . To test whether there is any association between the gender and brand of hair oil used, by constructing a contingency table​

Answer 1

Answer:

Step-by-step explanation:

4√81 - 8 3√216 + 15 5√32 + √225​