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yawa3891 [41]
3 years ago
8

Evaluate the following formula for

Mathematics
1 answer:
JulsSmile [24]3 years ago
3 0

Answer:

Step-by-step explanation:

Using provided formula and filling in the variables:

z = \frac{(0.6-0.7)-(0)}{\sqrt{\frac{0.615782*0.384218}{88}+\frac{0.615782*0.384218}{82} }}

Filling in in calculator:

z ≈ -1.34

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Step-by-step explanation:

Russian Revolution, also called Russian Revolution of 1917, two revolutions in 1917, the first of which, in February (March, New Style), overthrew the imperial government and the second of which, in October (November), placed the Bolsheviks in power

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3 years ago
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Subtract. write your awnser as a decimal <br><br><br> -1 - 2.5= ??
irinina [24]

Answer:

-3.5

Step-by-step explanation:

Hope this helps

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3 years ago
The ages of the 32 recruits in police academy are normally distributed with a mean of 27 with a standard deviation of 2. What is
aksik [14]
Since it's a sample size, we use x, as the mean and s= standard deviation
            _
Given:  x =27, s = 2 and total sample = 32.
Probability that a recruit is at least 31 years old?

Let's calculate the Z score :
              _
         X - x              31 - 27
Z = ----------- → Z = -------- → Z = 2 (now look up in the Z score table,
           s                      2


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7 0
3 years ago
An above ground swimming pool is leaking after 1 and 1/2 hours the pool has leaked 7/8 of a gallon of water how many gallons of
Aleksandr [31]

Answer:

In 1 hour the amount of water leaking from pool = \frac{7}{12} gallon of water

Step-by-step explanation:

Given as :

The amount of Leaking of water from the pool = \frac{7}{8} gallon

The time taken fro leaking \frac{7}{8} gallon of water = 1 \frac{1}{2} gallon  hour

Or The time taken fro leaking \frac{7}{8} gallon of water = \frac{3}{2} hour

∵ \frac{3}{2} hour takes for leaking \frac{7}{8} gallon of water

∴ In 1 hour the amount of water leaking from pool = \frac{7}{8}\setminus \frac{3}{2}

Or, In 1 hour the amount of water leaking from pool = \frac{7}{12} gallon of water    Answer

8 0
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How do i subtract integers/ what are the rules? <br><br> ex. -5 - -12
Anastasy [175]

Answer:

you keep flip change so the minus becomes addition and -12 becomes positive 12 so it turns out as -5+12 which is 7

Step-by-step explanation:

6 0
3 years ago
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