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kramer
3 years ago
5

Help PLSSSSSSS If you can now

Mathematics
1 answer:
marin [14]3 years ago
4 0

Answer:

its the 3rd option not the second

Step-by-step explanation:

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Describe the sampling distribution of p(hat). Assume the size of the population is 30,000.n=800, p=0.6a) Determine the mean of t
Leno4ka [110]

Answer:

Standard deviation of the binomial distribution

                               = \sqrt{n p q} = \sqrt{192}  = 13.856

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given size 'n' = 800

The population proportion 'p'=0.6

Let 'X' be the random variable of the binomial distribution

a)  mean of the binomial distribution  = n p = 800 ×0.6

                                                             μ  = 480

b)  variance of the binomial distribution

                                                                      = n p q

                                                                      =  800 X 0.6 ×0.4

                                                                 σ²  = 192

Standard deviation of the binomial distribution

                                                             σ    = \sqrt{n p q} = \sqrt{192}  = 13.856

6 0
3 years ago
Round .1287 to the nearest thousandth
Harlamova29_29 [7]
The answer would be .129
7 0
4 years ago
you get $27 to spend at the mall for doing 6 chores. your friend gets $36 for doing 8 chores. what is your pay rate?
Lady_Fox [76]
Your pay rate is $4.50/hour.

27/6=4.5=$4.50
6 0
4 years ago
Point M is on line segment LN. Given LN = 9, MN = 4x, and LM=5x
andrew-mc [135]

Answer:

MN = 4

Step-by-step explanation:

Given that L, M, N are collinear,

LN = 9,

MN = 4x

LM = 5x

Required:

Length of MN

SOLUTION:

To calculate the numerical length of MN, we need to find the value of x.

To find the value of x, generate an equation to solve for x as follows:

LM + MN = LN (segment addition postulate)

5x + 4x = 9 (substitution)

Solve for x

9x = 9

Divide both sides by 9

\frac{9x}{9} = \frac{9}{9}

x = 1

MN = 4x

plug in the value of x

MN = 4(1) = 4

5 0
3 years ago
Help!
Andru [333]

Answer:

21 Students played string instruments

Step-by-step explanation:

58 - 16 = 42, 42 ÷ 2 = 21 so 21 + 21 + 16 = 58. because there are sixteen more wind instruments that means you need to have the wind and string equal and then add 16 more winds which is what i did, if you have 21 string instruments and (21+16) 37 wind instruments then you have 58

Please mark as brainliest :)

6 0
3 years ago
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