Complete the chart to find the mean, variance, and standard deviation. remember to use commas and round numbers
to the nearest tenth.
x-x
x-x?
1. 45
= -357.5
the mean is
2.340
=-62.5
the variance is
3.400
= -2.5
the standard deviation is
4. 825
= 422.5
ex=
ex - x)2 = 310,225.2

i don't even know man. edge inuity be messing with us. i had to ask a question too.

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;

vertical=18cm horizontal=18cm hypotenuse=25.5

step-by-step explanation: