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riadik2000 [5.3K]
2 years ago
6

An auction house sells raffle tickets for $1. There are 10 prizes, each worth $10. If 100 raffle tickets are sold, what is the e

xpected value of each ticket? $0 $1 -$1 $10
Mathematics
2 answers:
zaharov [31]2 years ago
8 0
Each prize is $10, 100 tickets for a dollar and then it's a $100, divide it by a total of ten prizes and it's 10 dollars a prize 
allsm [11]2 years ago
7 0
1 dollar is the expected value
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How many times greater is the value of the 7 in 874,699 than the value of
geniusboy [140]

Answer:

C. 10 times greater

Step-by-step explanation:

every time you move left a number space, the value increases by a multiple of 10x (the opposite is true for moving right)

for example:

1.0

10.0

100.0

<u>1</u><u>0</u><u> </u><u>is </u><u>1</u><u>0</u><u>x</u><u> </u><u>greater </u><u>than </u><u>1</u>

<u>1</u><u>0</u><u>0</u><u> </u><u>is </u><u>1</u><u>0</u><u>x</u><u> </u><u>greater </u><u>than </u><u>1</u><u>0</u><u> </u><u>or </u><u>1</u><u>0</u><u>0</u><u>x</u><u> </u><u>greater </u><u>than </u><u>1</u>

<u>*</u><u>notice </u><u>how </u><u>the </u><u>number </u><u>1</u><u> </u><u>is </u><u>moving </u><u>one </u><u>space </u><u>to </u><u>the </u><u>left</u>

3 0
2 years ago
Rewa Delta Union Rugby CEO has become concerned about the slow pace of the rugby games played in the current union rugby, fearin
ozzi

Answer:

We conclude that the mean duration of 15-sided union rugby games has decreased after the meeting.

Step-by-step explanation:

We are given that Before the meeting, the mean duration of the 15-sided rugby game time was 3 hours, 5 minutes, that is, 185 minutes.

A random sample of 36 of the 15-sided rugby games after the meeting showed a mean of 179 minutes with a standard deviation of 12 minutes.

Let \mu = <em><u>mean duration of 15-sided union rugby games after the meeting.</u></em>

So, Null Hypothesis, H_0 : \mu \geq 185 minutes      {means that the mean duration of 15-sided union rugby games has increased or remained same after the meeting}

Alternate Hypothesis, H_A : \mu < 185 minutes     {means that the mean duration of 15-sided union rugby games has decreased after the meeting}

The test statistics that would be used here <u>One-sample t test statistics</u> as we don't know about the population standard deviation;

                            T.S. =  \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample mean duration of 15-sided union rugby games = 179 min

            s = sample standard deviation = 12 minutes

            n = sample of 15-sided rugby games = 36

So, <u><em>the test statistics</em></u>  =  \frac{179-185}{\frac{12}{\sqrt{36} } }  ~ t_3_5

                                       =  -3

The value of t test statistics is -3.

<u>Now, at 1% significance level the t table gives critical value of -2.437 at 35 degree of freedom for left-tailed test.</u>

Since our test statistic is less than the critical value of t as -3 < -2.437, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which <u>we reject our null hypothesis</u>.

Therefore, we conclude that the mean duration of 15-sided union rugby games has decreased after the meeting.

6 0
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Sonbull [250]
The anwser is 53%....
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3 years ago
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Please help. Thank you.
Marysya12 [62]

The answer would be 24pi inches.

You can find this by using the formula for a circumference and plugging in the value of the radius.

C = 2pi*r

C = 2pi * 12

C = 24pi

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3 years ago
a triangle pyramid has lateral faces with bases of 6meters and hights of 9 meters the area of the base of the pyramid
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What is the question
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