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Yuri [45]
4 years ago
8

The standard deviation of a population is known to be 7.8. if the population size is 85, what is the standard error of the mean?

Mathematics
2 answers:
il63 [147K]4 years ago
4 0
The answer is B.) 0.85

I’m 100% sure.
SCORPION-xisa [38]4 years ago
3 0
 THE ANSWER IS D.... I'M PRETTY SURE
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A water tank is 1/8 full. the tank is 3/4 full when 42 gallons of water are added to the tank. how much water can the tank hold
Rashid [163]

Let, the water capcity of tank = x

it would be x*3/4 = 42

x = 42*4 / 3 = 168/3 = 56

So, the tank can hold up to 56 gallons

3 0
3 years ago
Read 2 more answers
Find the geometric mean of sqrt 77 and sqrt 343.
astraxan [27]

Answer:

12.75

Step-by-step explanation:

The computation of the geometric mean of sqrt 77 and sqrt 343 is given below:

As we know that

Geometric mean = \sqrt{ab}

where

a is the first number = \sqrt{77}

And, the b is the second number = \sqrt{343}

Now first we have to convert into a number

For a it, is = 8.78

And, for b, it is = 18.52

Now the geometric mean is

= \sqrt{8.78 \times 18.52}

= 12.75

6 0
3 years ago
A bicycler traveled 45 mi. at an average speed of 6 mi./hr. How long did the ride take?
kobusy [5.1K]

Answer:

The ride took 7 1/2 hours to complete.

Step-by-step explanation:

If the bicyclist is going at a constant speed of 6mi/hr it would take 7 1/2 hours to ride 45 miles.

6*7 1/2=45

7 0
4 years ago
What is the relationship between pi, circumstance, and area?
frozen [14]
You use pi in the equation to find the circumference and/or area of a circle.
7 0
4 years ago
Tell weather -3>-x/5; x =10 is a solution of inequality
chubhunter [2.5K]

Answer: \begin{bmatrix}\mathrm{Solution:}\:&\:x>15\:\\ \:\mathrm{Interval\:Notation:}&\:\left(15,\:\infty \:\right)\end{bmatrix}

Step-by-step explanation:

-3>-\frac{x}{5}

-\frac{x}{5}

5\left(-\frac{x}{5}\right)

-x

\left(-x\right)\left(-1\right)>\left(-15\right)\left(-1\right)

x>15

4 0
3 years ago
Read 2 more answers
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