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Kipish [7]
3 years ago
7

For a normally distributed random variable x with m = 75 and s = 4, find the probability that 69 < x < 79 Use the table to

help find the answer.
Mathematics
1 answer:
nalin [4]3 years ago
6 0

10-14-19-12-14-18-10-15-15

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What is the greatest common factor of 33 and 46
Pie
The greatest common factor of 33 and 46 is 3.
4 0
3 years ago
Read 2 more answers
20 point question! Please help!
Klio2033 [76]
With 3 you will have 9pi
With 13 you will have 169pi
So 169/9 so 18,8
8 0
1 year ago
Jarrod earns $12 per hour helping a painter and $15
JulijaS [17]

Answer:

$14 per hour.

Step-by-step explanation:

I answered this before for someone I think.

$$$ earned from the painter: 120

$$$ earned from the carpenter: 300

(300+120)/30= 14 per hour

Hope this helps!

6 0
3 years ago
A tree grow 1/4 foot in 1/12 year.
lilavasa [31]

Answer:

Part A) The rate is \frac{12}{4}\ \frac{feet}{years}

Part B) In 1 year the tree grows 3 feet

Step-by-step explanation:

Part A)  write the rate at which this tree grows as a fractions

we know that

To find out the rate at which the tree grows divide 1/4 foot by 1/12 year

so

\frac{(1/4)}{(1/12)}=\frac{12}{4}\ \frac{feet}{years}

Part B) how many feet does the tree grow in 1 year?

we know that

The tree grows at rate of \frac{12}{4}\ \frac{feet}{years}

Simplify

\frac{3}{1}\ \frac{feet}{year}

That means ----> The tree grows 3 ft in 1 year

therefore

In 1 year the tree grows 3 feet

5 0
3 years ago
At a canning facility, a technician is testing a machine that is supposed to deliver 250 milliliters of product. The technician
Vinvika [58]

Answer:

1.97

Step-by-step explanation:

The null hypothesis is:

H_{0} = 250

The alternate hypotesis is:

H_{1} \neq 250

Our test statistic is:

t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the hypothesis tested(null hypothesis), \sigma is the standard deviation and n is the size of the sample.

In this problem, we have that:

X = 251.6, \mu = 250, \sigma = 5.4, n = 44

So

t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

t = \frac{251.6 - 250}{\frac{5.4}{\sqrt{44}}}

t = 1.97

8 0
3 years ago
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