1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
iragen [17]
3 years ago
7

In an all boys school, the heights of the student body are normally distributed with a mean of 70 inches and a standard deviatio

n of 3 inches. What is the probability that a randomly selected student will be shorter than 63 inches tall, to the nearest thousandth?
Mathematics
1 answer:
almond37 [142]3 years ago
3 0

Answer:

0.010

Step-by-step explanation:

We solve the above question using z score formula

z = (x-μ)/σ, where

x is the raw score = 63 inches

μ is the population mean = 70 inches

σ is the population standard deviation = 3 inches

For x shorter than 63 inches = x < 63

Z score = x - μ/σ

= 63 - 70/3

= -2.33333

Probability value from Z-Table:

P(x<63) = 0.0098153

Approximately to the nearest thousandth = 0.010

Therefore, the probability that a randomly selected student will be shorter than 63 inches tall, to the nearest thousandth is 0.010.

You might be interested in
Whoever can make me laugh with good joke i give brainlliest
Ostrovityanka [42]

Answer:

Q:Why was the baby ant confused?

A:Because all it's uncles were ants!!

LOL SO BAD!!

3 0
3 years ago
Any chance with 23-25?
iogann1982 [59]
This math answer is -2
4 0
3 years ago
What is the mean absolute deviation of $29 $58 $15 $129 $75 $22
Vika [28.1K]

Answer:

32.666666666667

http://www.alcula.com/calculators/statistics/mean-absolute-deviation/

Insert data and it will calculate the (MAD).

7 0
3 years ago
Read 2 more answers
What is the answer to this please help!
Butoxors [25]

z+(-0.72)=-2.5\\\\\text{Step 1}:\ x+(-0.72)+(-0.72)=-2.5+(-0.72)\qquad\text{ERROR}\\\\CORRECT\ IS:\ x+(-0.72)-(-0.72)=-2.5-(-0.72)\\\\\text{Step 2}:\ x=-2.5+0.72\\\\\text{Step 3}:\ x=-1.78


Subtract, not add, -0.72 from both sides.

6 0
3 years ago
HELP!!!!!!!!!!!
erica [24]
Your answer would be (b.) because -2+-3=-5

3 0
3 years ago
Read 2 more answers
Other questions:
  • Two trains, train a and train b, weigh a total 197. Train A is heavier than train b. The difference of their weights is 77 tons.
    10·1 answer
  • Which is the third greatest rational number
    7·1 answer
  • What is the distance between the points (4,5) and (10,13) on a coordinate plane?
    15·1 answer
  • 2(1 - 3y) - 13x ik the answer idk how to show the work plz help KEY: y = -9 x = 4
    7·1 answer
  • ONLY HAVE 6 MINS HELP PLZ ILL MARK BRAIN
    15·2 answers
  • Can yall pls help me with this, pls try to explain it in steps, ty!
    10·2 answers
  • A rectangular prism has a length of 9 in., a width of 4 in., and a height of 1 1/2 in. The prism is filled with cubes that have
    15·2 answers
  • 5x – 3y = 24<br><br>What is the Slope and Y Intercept?​
    15·2 answers
  • Save me look at pic giving brainlyest
    14·2 answers
  • Asmaa paid 9.96 for 3 pairs of socks. Jagdeeep paid 14.75 for 5 pairs of socks. Which person got the better deal? Explain.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!