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
disa [49]
3 years ago
8

The average height of a male ROTC cadet is 70 in. Suppose that 10 percent of the male cadets are taller than 72 in. Assuming tha

t the heights of the cadets are normally distributed, what is the standard deviation
Mathematics
1 answer:
shepuryov [24]3 years ago
7 0

Answer:

1.56

Step-by-step explanation:

Given that :

Average height (μ) = 70 in

10% are taller than 72 in ; the standard deviation Given a normal distribution :

P(x > Z) = 0.10

Using a Z probability calculator, the Z value corresponding to P(x > Z) = 0.10 is 1.282

Z = 1.282

Using the Z relation:

Z = (x - μ) / σ

σ = standard deviation x = 72

1.282 = (72 - 70) / σ

1.282σ = 2

σ = 2 / 1.282

σ = 1.5600624

σ = 1.56

You might be interested in
An airplane covers 94 miles in 6 of an hour.<br> The plane can cover<br> miles in 6 hours.
Mekhanik [1.2K]

Answer:

in 6 hours it will be 3384

7 0
3 years ago
Read 2 more answers
Brendan and Marie are each assigned a paper for a class they share. Brendan decides to write 41 pages at a time while Marie deci
hram777 [196]

Answer:

18+18=38, since they did the same number that's the least it could be

7 0
3 years ago
A game spinner has eight equal sections: three sections numbered 1, one section numbered 2, and four sections numbered 3. The sp
baherus [9]

Answer:

The required probability is \frac{1}{8} or 0.125

Step-by-step explanation:

Consider the provided information.

The spinner is spin twice and we want the sum should be 5.

We can get 5 if first spin gives us 2 and second spin gives 3.

Or we can get 5 if first spin gives us 3 and second spin gives 2.

There are 8 section out off which Three sections numbered 1, one section numbered 2, and four sections numbered 3.

The probability of getting 2 is \frac{1}{8}

The probability of getting 3 is \frac{4}{8}

Now, the probability that the sum of the two spins will be five is:

\frac{1}{8}\times \frac{4}{8}+\frac{4}{8}\times \frac{1}{8} =\frac{4}{64}+\frac{4}{64}=\frac{1}{8}

Hence, the required probability is \frac{1}{8} or 0.125

6 0
4 years ago
25% of 1 min (in sec)​
MAVERICK [17]
Answer : 15 seconds

25% is equal to 1/4, so you can just divide 60 seconds by 4, and that gives you the answer.
7 0
3 years ago
Read 2 more answers
Which expression is equivalent to...
olga_2 [115]

Answer:

8m^5

Step-by-step explanation:

Well we can simplify the numerator, by multiplying the 4 by the 6 and the m^3 and m^4 (add the exponents, explained in one of my previous answers I think)

This gives us the fraction: \frac{24m^7}{3m^2}

We can now divide the m^7 by m^2 by subtracting the exponents, and the reason why this works, is you're simply cancelling out the m's, If we express this in expanded form we have the following fraction: \frac{24 * m * m * m * m * m * m * m}{3 * m * m}

Since there is two m's in the denominator and there is also two (more than two) m's in the numerator, we can cancel those two m's out, and we get the fraction:

\frac{24 * m * m * m * m * m}{3} which can be simplified in exponent form as: \frac{24m^5}{3}, now all we have to do is divide the 24 by the 3, to get 8

This gives us the answer: 8m^5

6 0
2 years ago
Other questions:
  • Redo, Answers please?
    5·2 answers
  • Quadrilateral ABCD is a square and the length of BE¯¯¯¯¯ is 6 cm.
    13·2 answers
  • The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The d
    13·1 answer
  • Given: KLMN is a parallelogram m∠K : m∠KLM=1:3 LF ⊥ KN , LD ⊥ NM Find: m∠FLD
    11·2 answers
  • A food processor for $149.50 cash, or $5.00 down and $10.00 per month for 15 months
    6·1 answer
  • (tanx+sinx)(1-cosx)=sin^2xtanx
    11·1 answer
  • What value of z makes 7+5(z-3)=22 a true statement
    5·1 answer
  • Which of the following options have the same value as 25, percent of 64
    5·2 answers
  • What is the sum of <br> 25 3/10 + 376 77/100
    7·1 answer
  • Is it true that M is perpendicular to P?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!