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2 years ago

If a dice is rolled 8 times, how many times is the number 2 expected to come up?

Mathematics

2 answers:

disa [49]2 years ago

7 0

Well it's a one out of six chance

jolli1 [7]2 years ago

5 0

The probability of a dice rolling a number 2, after rolling it 8 times is 1/48

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Sabrina rides her bike 2 miles to school each day she leaves her house 7:30 and arrives at 7:50 What is Sabrina's average speed

MakcuM [25]

6 mph.

To find this, create a ratio.

2/20 = x/60

This will allow you to compare here time of twenty minutes to an hour in the same context.

Multiply 2 by 60 and divide by 20 to get the answer of 6 mph.

Thus, Sabrina's average speed in miles per hour is six miles per hour.

Hope this helps!

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2 years ago

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alina1380 [7]

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2 years ago

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Usimov [2.4K]

Can you pls brainlest me I need it so much

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1 year ago

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The Insure.com website reports that the mean annual premium for automobile insurance in the United States was $1,503 in March 20

stira [4]

Answer:

a) Option A)

$H_{0}: \mu \geq 1503\\H_A: \mu < 1503$

b) Point estimate of difference = -78

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $1,503

Sample mean, $\bar{x}$ = $1,425

Sample size, n = 25

Sample standard deviation, s = $160

We have to carry a hypothesis test that the mean annual premium in Pennsylvania is lower than the national mean annual premium.

a) First, we design the null and the alternate hypothesis

$H_{0}: \mu \geq 1503\text{ dollars}\\H_A: \mu < 1503\text{ dollars}$

b) Point estimate of the difference between the mean annual premium in Pennsylvania and the national mean

Point estimate of difference =

Mean annual premium in Pennsylvania - National mean

$\text{Point estimate} = \bar{x} - \mu = 1425 - 1503 = -78$

Thus,

Point estimate of difference = -78

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2 years ago

What is the illustrated property of the statement<br> if 5n=15,then 15=5n ?<br> BRAINLIEST

ASHA 777 [7]

This would be the symmetric property!

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