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Brilliant_brown [7]

3 years ago

6

The ages of the 32 recruits in police academy are normally distributed with a mean of 27 with a standard deviation of 2. What pe

rcent of the recruits are between ages 23 and 27?

1 answer:

Natalka [10]3 years ago

8 0

Z scores are (age - mean) / std dev

= 23 - 27 / 2 = -2 and 27-27 / 2 = 0

Using the standard normal tables we find the required percentage is 47.73%

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3 years ago

What is 9.6+5.42-3.2 squared

Aleonysh [2.5K]

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10 POINTS AND BRAINLIEST<br> URGENT MATH QUESTION SEE PICTURE

Lostsunrise [7]

The point-slope form:

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5 0

3 years ago

Quadrilateral ABCD is a rhombus with an area of 20 square inches.

Ugo [173]

Answer:

area of rhombus =1/2 d1×d2

20=1/2 ×10×d2

d2=4

intersection of diagonal make right angle and cut in equal parts

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use Pythagoras in right angle to bide side

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8 0

3 years ago

Solve for x and y <br> x+y=a<br> x−y=b <br> PLZ HELP VERY URGENT

antoniya [11.8K]

Answer:

Step-by-step explanation:

x+y=a

a=x+y

x−y=b

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Good luck honey!

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4 years ago