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IRISSAK [1]
3 years ago
7

IDK WHY IT SAYS IM A COLLEGE PERSON IM NOT BUT UM I NEED HELP WITH THIS PLEASEEEEEE

Mathematics
2 answers:
ryzh [129]3 years ago
6 0

Answer:

option 3

Step-by-step explanation:

mel-nik [20]3 years ago
3 0

Answer:

it's option 3 i think

Step-by-step explanation:

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A population of values has a normal distribution with μ = 155.4 and σ = 49.5 . You intend to draw a random sample of size n = 24
xz_007 [3.2K]

Answer:

(a) The probability that a single randomly selected value lies between 158.6 and 159.2 is 0.004.

(b) The probability that a sample mean is between 158.6 and 159.2 is 0.0411.

Step-by-step explanation:

Let the random variable <em>X</em> follow a Normal distribution with parameters <em>μ</em> = 155.4 and <em>σ</em> = 49.5.

(a)

Compute the probability that a single randomly selected value lies between 158.6 and 159.2 as follows:

P(158.6 < X

*Use a standard normal table.

Thus, the probability that a single randomly selected value lies between 158.6 and 159.2 is 0.004.

(b)

A sample of <em>n</em> = 246 is selected.

Compute the probability that a sample mean is between 158.6 and 159.2 as follows:

P(158.6 < \bar X

*Use a standard normal table.

Thus, the probability that a sample mean is between 158.6 and 159.2 is 0.0411.

4 0
3 years ago
Read 2 more answers
A spinner has three sections. The table shows the results of spinning the arrow on the spinner 80 times. What is the experimenta
mihalych1998 [28]
The experimental probability is

  (number of times it stopped over Sect. 2) / (total number of times you tried it)

Number of times it stopped in Section-2: 36

Total number of times you tried it:  (20 + 36 + 24)  =  80

Experimental probability of Section-2  =  36/80 = 9/20  =  45%
8 0
3 years ago
An unbiased coin is tossed 20 times find the probability that the coin lands heads exactly 11 times
alexgriva [62]
Both the heads and tails will have a probability of 0.5 with a fair coin. ... TO find probability that foe the 7th toss head appears exactly 4 times.
7 0
3 years ago
I have to turn that into the simplest form
zimovet [89]

5.006=5\frac{6}{1000} =5\frac{3}{500}...or...\frac{2,503}{500}

Hope this helps!

8 0
3 years ago
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Please i need help with this question 50 points
alekssr [168]

Answer:

can you get a better picture it is hard to see

Step-by-step explanation:

6 0
3 years ago
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