Do the standard deviations satisfy the guidelines for the use of ANOVA? No, because the largest standard deviation is less than twice the smallest standard deviation. No, because the largest standard deviation is more than twice the smallest standard deviation. Yes, because the largest standard deviation is less than twice the smallest standard deviation. Yes, because the largest standard deviation is more than twice the smallest standard deviation.

No, because the largest standard deviation is more than twice the smallest standard deviation.

Step-by-step explanation:

Okay, so the standard deviation for each of the sample is given as;

NHES II study = 2.486, NHANES II study = 2.408 and NHANES study = 5.851.

In order to determine whether the standard deviations satisfy the guidelines for the use of ANOVA, one of the conditions for anova for sample standard deviations must be considered that is;

'' the value of the sample standard deviations should not be times two of the smallest standard deviation."

In which if we have; highest sample standard deviations / smallest standard deviation < 2, Then, population variance is equal.

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation:

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

pls mark as brainliest