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lara [203]
4 years ago
9

Suppose you purchase a raffle ticket for $1.00. First prize is $5,000, second prize is $1,000, and third prize is $500. If 500 t

ickets are sold, what should you expect to win or lose? Round the answer to the nearest cent.
$0.99 loss

$13.00 loss

$10.00 gain

$12.00 gain
Mathematics
1 answer:
Keith_Richards [23]4 years ago
8 0
You should expect to gain 12$
You might be interested in
Should i put a comma after
suter [353]
The answer is before
6 0
3 years ago
in 2018 GRE scores were normally distributed with a mean of 303, and standard deviation of 13. Standford University Graduate sch
eduard

Answer:

The minimum score needed to be considered for admission to Stanfords graduate school is 328.48.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 303, \sigma = 13

What is the minimum score needed to be considered for admission to Stanfords graduate school?

Top 2.5%.

So X when Z has a pvalue of 1-0.025 = 0.975. So X when Z = 1.96

Z = \frac{X - \mu}{\sigma}

1.96 = \frac{X - 303}{13}

X - 303 = 13*1.96

X = 328.48

The minimum score needed to be considered for admission to Stanfords graduate school is 328.48.

3 0
3 years ago
I need help someone​
allochka39001 [22]

Answer:

There is no correlation.

Step-by-step explanation:

The points are far spread and does not give any correlation.

7 0
3 years ago
Express the formula P=2L+2W in terms of the width,W. Use the formula to find the width when the perimeter is 70 and the length i
ozzi

Answer:

<h2>The width is 13</h2>

Step-by-step explanation:

From the question

P=2L+2W

where

L is the length

W is the width

To make W the subject move 2L to the left side of the equation

That's

2W = P - 2L

Divide both sides of 2 to make W stand alone

We have

W =  \frac{P - 2L}{2}

when

P = 70

L = 22

W is

W =  \frac{70 - 2(22)}{2}  \\ W =  \frac{70 - 44}{2}  \\ W =  \frac{26}{2}

We have the final answer as

<h3>W = 13</h3>

Hope this helps you

5 0
3 years ago
Read 2 more answers
Help please :( !! i don’t understand:/
Naddik [55]

Answer:

0.88

Step-by-step explanation:

First of all look how big the 3 is. X is smaller 2 would have been bigger so I believe its 0.88

5 0
4 years ago
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