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dimulka [17.4K]
3 years ago
13

The weights of dogs at a kennel are Normally distributed with a mean of 18 pounds and a standard deviation of 3.5 pounds.In whic

h percentile is a dog who weighs 25 pounds?
Mathematics
2 answers:
saveliy_v [14]3 years ago
4 0

Answer:

97.5th percentile

This is the right answer edge 2020

Step-by-step explanation:

Ierofanga [76]3 years ago
3 0

Answer:

P(x=25)=P(z=2)=0.9972 or 99.72%

Step-by-step explanation:

Mean = 18 pounds

Standard Deviation = 3.5 pounds

x= 25

We need to find P(x=25)

First, we need to find z-score using formula: z-score=\frac{x-\mu}{\sigma}

Finding z-score when x=25

z-score=\frac{x-\mu}{\sigma}\\z-score=\frac{25-18}{3.5}\\z-score=2

So, we need to find P(z=2)=P(x=25)

Looking at z-score table we can find P(z=2)

P(z=2)=0.9972 or 99.72%

So, P(z=2)=0.9972 or 99.72%

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An office opens at 9am and closes at 5.30pm with a lunch break of 30minutes. What is the ratio of lunch break to the total perio
Alex777 [14]

Answer:

1:17

Step-by-step explanation:

Find out how long it it between 5.30pm and 9am. This is 8 hours 30 minutes or 510 minutes.

Now, arrange them in the ratio of Lunch Break to Total office time

30:510. This can be simplified to 1:17

Please check if the question is worded correctly, just in case. Because ratio questions are usually based on a part and the remaining parts of the same thing, and not part to whole.

Anyway. The answer given if for the question you have typed.

Hope this helps.

4 0
3 years ago
Read 2 more answers
Jabo is standing next to a building. Jabo is 6.25 feet tall, and cast a shadow that 14 feet long. If the building cast a shadow
stich3 [128]

Answer:

64.286ft

Step-by-step explanation:

6.25-->14

x-->144in=12ft im going to asume you meant 144ft or that would be a very small building

14/6.25=2.24ft shadow for 1 real foot

144/2.24=about 64.286ft

5 0
3 years ago
5/8 of the 64 musicians in a music contest are guitarists. Some of the guitarists play jazz solos, and the rest play classical s
motikmotik

The first thing we must do for this case is find the number of total guitarists.

We have then:

(\frac{5}{8}) * (64) = 40

We now look for the relationship between the number of guitarists playing jazz alone to the total number of guitarists.

We have then:

\frac{x}{40} = \frac{1}{4}

Where,

x: number of guitarists playing jazz alone

From here, we clear the value of x.

x = (\frac{1}{4}) * (40)\\x = 10

Then, the number of guitarists who play classical solo is:

40 - 10 = 30

Answer:

30 guitarists play classical solos in the contest

5 0
3 years ago
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Aloiza [94]
Yes he would have enough money.

8 0
3 years ago
Find the amount of time. I=$237.90, P=$1525, r=2.6%<br><br> think I=PRT
egoroff_w [7]
AWNER is 6

Hope it helps u
7 0
3 years ago
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