2 years ago

PLEASE HELP ME!!!!!!!

Mathematics

1 answer:

Evgesh-ka [11]2 years ago

8 0

Monday $2000 Tuesday $1800 wendsday $ 1440 thursday $5670

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FromTheMoon [43]

23.75 x 4 = 95

$23.75 is the answer.

hope this helps, please mark brainliest :)

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3 years ago

How many numbers are 10 units from zero on the number line??

atroni [7]

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2 years ago

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horsena [70]

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2 years ago

Suppose that we will randomly select a sample of 106 measurements from a population having a mean equal to 19 and a standard dev

svet-max [94.6K]

Answer:

$z =\frac{18.45-19}{\frac{7}{\sqrt{106}}}= -0.809$

And if we use the normal standard distribution or excel we got:

$P(z$

Step-by-step explanation:

For this case we have the following info given:

$\mu = 19$ represent the mean

$\sigma = 7$ represent the standard deviation

$n = 106$ represent the sample size

The distribution for the sample size if we use the central limit theorem (n>30) is given by:

$\bar X \sim N(\mu , \frac{\sigma}{\sqrt{n}})$

And for this case we want to find the following probability:

$P(\bar X< 18.45)$

And for this case we can use the z score formula given by:

$z =\frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}$

And replacing we got:

$z =\frac{18.45-19}{\frac{7}{\sqrt{106}}}= -0.809$

And if we use the normal standard distribution or excel we got:

$P(z$

4 0

3 years ago

A:b=2:5 b:d=4:3 c:d=4:5 a:e=1:3 a+b+c+d+e=792 a=? b=? c=? d=? e=?

Ainat [17]

Answer:

a is 2 b is 5 ď is 3 e is 5 and that is it this is not the correct awns

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2 years ago