Consider the following 8 numbers, where one labelled X is unknown. 45, 19, 15, 3, 42, 3, 44, 10
Given that the range of the numbers is 66,
work out 2 values of x.
2 =
=
o
Ok

f(x) = y

f(-3) = -5

step-by-step explanation:

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.

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step-by-step explanation:

i need a diagram

step-by-step explanation:

no