Asurvey was taken of children between the ages of 10 and 17 about how many siblings they have and whether they have a pet. the results of the survey are shown in the table. which statement must be true?
a. out of the 125 children who do not have a pet, 18 of them have 2 siblings.
b. out of the 97 children who have 1 pet, 40 of them do not have any siblings.
c. out of the 125 children who do not have any siblings, 34 of them have a pet.
d. out of the 97 children who have 1 sibling, 40 of them do not have a pet.

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

click to let others know, how is it

0.0

0 votes

1

report

read more on -

step-by-step explanation:

a

step-by-step explanation:

strong negative correlation