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Fittoniya [83]
3 years ago
8

Need urgent help with this, please!!! second part on my profile, PLEASE IT'S URGENT!!

Mathematics
1 answer:
lana [24]3 years ago
4 0

transfer of questionnumber 12 is B-112

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Suppose that a sample of size 100 is to be drawn from a population with standard deviation L0. a. What is the probability that t
NARA [144]

Answer:

The probability that the sample mean will lie within 2 values of μ is 0.9544.

Step-by-step explanation:

Here

  • the sample size is given as 100
  • the standard deviation is 10

The probability that the sample mean lies with 2 of the value of μ is given as

                                            P(| \bar{X}-\mu|

Here converting the values in z form gives

P(-2

Substituting values

P(-2

From z table

P(z\leq 2)=0.9772\\P(z\leq -2)=0.0228\\P(-2\leq z\leq 2)=P(z\leq 2)-P(z\leq -2)\\P(-2\leq z\leq 2)=0.9772-0.0228\\P(-2\leq z\leq 2)=0.9544\\

So the probability that the sample mean  will lie within 2 values of μ is 0.9544.

5 0
3 years ago
What is the answer to 5y-3/5= 4/5
kykrilka [37]
Y = 7/25 is the answer.
3 0
3 years ago
Read 2 more answers
Fruitstand has eating red apples. This is 40% of the total apples understand. How many apples are in there in the stand?
Margarita [4]
100 because 40% is 40 and you do not kno the exact number of apples
6 0
3 years ago
Joseph is weaving a ceremonial Native American sash the sauce will be 8 feet long when it is completed Joseph wants to add a dia
Rama09 [41]

Answer:  The sash will have 20 diamonds when it is completed.


Step-by-step explanation:

Given: The length of American sash= 8 feet

Since, Joseph wants to add a diamond shape every 0.4 ft along the sash.

Therefore, the number of diamonds he will need to complete the sash= \frac{8}{0.4}

⇒ The number of diamonds he will need to complete the sash= \frac{80}{4}=20

Hence,  the number of diamonds he will need to complete the sash= 20


3 0
3 years ago
What is the solution to this inequality 9-3x>=2(x-3)
NeTakaya
9-3x  \geq 2(x-3)

9-3x  \geq 2x-6

9  \geq 5x-6

15  \geq 5x

3  \geq x

\boxed{x  \leq 3}
3 0
3 years ago
Read 2 more answers
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