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iogann1982 [59]
1 year ago
12

Your little brother has a a career batting average of 0.233. You want to determine the probability that he will have a batting a

verage of over 0.250 next season when he will be up to bat 40 times. Are the conditions met so that the sample proportion hatp will be approximately normal?
A. Yes. There is a large sample (n>30) so the sample proportion must be normal.
B. Yes. 40xx0.250>=10 so the conditions are satisfied.
C. No. hatp can only be normal if the sample data are normally distributed.
D. No. 40xx0.233<10 so the conditions are not satisfied.
Mathematics
1 answer:
alexandr402 [8]1 year ago
4 0

Answer:

b

Step-by-step explanation:

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I had to read this a couple of times to see this was not about time, but is a right triangle problem. If the hour hand is at three, let us consider that a leg of a right triangle, we will consider the hypotenuse as the second hand.
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The hypotenuse is 9 cm. the angle is found by: 

the (hour hand) is pointing directly at the 12. I expect you mean the minute hand. The angle between the minute hand and the second hand is 25/60*360 = 150 which make the angle between the hour hand and the second hand. 150 -90 =60 

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cos 60 = x/9 

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2 years ago
Dalia flies an ultralight plane with a tailwind to a nearby town in 1/3 of an hour. On the return trip, she travels the same dis
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Dalia had an average airspeed of ⇒ 42 miles per hour.
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8 0
2 years ago
Read 2 more answers
1.How much taller Porter is than Henry, given that Porter is n inches tall and Henry is m inches tall. 2.How many times as tall
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Answer:

Porter is n-m inches taller than Henry.

Porter is \frac{n}{m} times taller than henry.

Step-by-step explanation:

The difference in height can be found using subtraction.

Since Porter is taller than Henry, we'll subtract away Henry's height from Porter's height. This will leave us with only the difference between the heights.

n = Porter's height

m = Henry's height

Difference in height is thus:

n-m

Answer: Porter is n-m inches taller than Henry.

To find out how many times taller Porter is than Henry, we can use division.

An example: if Porter was 200cm, and Henry was 100cm, Porter is obviously 2 times as tall.

If we divide Porter's height by Henry's height...

\frac{200}{100}=2

..we'll get 2. This is because Henry's height "fits in twice" in Porter's height. 100 fits twice in 200.

Using our values, n and m, we'll divide n by m.

\frac{n}{m}

Answer: Porter is \frac{n}{m} times taller than henry.

3 0
2 years ago
(1 point) Rework problem 15 in section 2 of Chapter 5 of your textbook about the growing suburb and the declining city using the
Vanyuwa [196]

Answer:

16 years

Step-by-step explanation:

Let x represent the number of years. The suburb population is growing at a rate of 5000 per year after x years, it can be represented by the equation:

320000 + 5000x

The city population is declining at a rate of 14000 per year after x years, it can be represented by the equation:

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The number of years for the city and suburb population to be equal can be gotten from:

320000 + 5000x = 624000 - 14000x

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The researcher also determined that the standard deviation of all horses coming to the veterinary clinic is 8 years. Based on th
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Note the question was given as an incomplete question the correct and complete question had to be searched online via Google. So the data used are those gotten from the online the Googled question.

3 0
1 year ago
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