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topjm [15]
2 years ago
10

A die is rolled 200 times with the following results.

Mathematics
2 answers:
OlgaM077 [116]2 years ago
6 0

Answer:

Theoretical Probability: P(even) = . 1/2

Experimental Probability: P(evn) = 94/200 = 47/100

Step-by-step explanation:

The theoretical probability of getting a even number is 1/2 because it equally likely to get and not to get it. Since half of the numbers are even then the probability of getting an even is 1/2.

Black_prince [1.1K]2 years ago
4 0

Answer: 47%

Step-by-step explanation:

Based on the data given the odds of this die rolling an even number would be

47%.

To get the answer we need to add up all the events we are looking for - uin this case even numbers. 36+20+38=94. so the even numbers are rolled 94 out of 200 times. 94/200 or .47 or 47%

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Wittaler [7]

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4 0
3 years ago
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Which expression is equivalent to 7 (2x - 5)
zzz [600]

Answer:

14x-35

Step-by-step explanation:

Use distributive property so,

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2x*7=14x

-5*7=-35

3 0
3 years ago
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A food company sells salmon to various customers. The mean weight of the salmon is 37 lb with a standard deviation of 2 lbs. The
brilliants [131]

Answer:

The standard deviation for the mean weigth of Salmon is 2/3 lbs for restaurants, 2/7 lbs for grocery stores and 1/4 lbs for discount order stores.

Step-by-step explanation:

The mean sample of the sum of n random variables is

\overline{X} = \frac{X_1+X_2+...+X_n}{n}

If X_1, ..., X_n are indentically distributed and independent, like in the situation of the problem, then the variance of X_1 + .... + X_n will be the sum of the variances, in other words, it will be n times the variance of X_1 .

However if we multiply this mean by 1/n (in other words, divide by n), then we have to divide the variance by 1/n², thus \overkine{X} = \frac{V(X_1)}{n} and as a result, the standard deviation of \overline{X} is the standard deviation of X_1 divided by \sqrt{n} .

Since the standard deviation of the weigth of a Salmon is 2 lbs, then the standard deviations for the mean weigth will be:

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  • Discount outlet stores: Each pallet has 64 salmon, as a result, the standard deviation is \frac{2}{\sqrt{64}} = \frac{1}{4}

We conclude that de standard deivation of the mean weigth of salmon of the types of shipment given is: 2/3 lbs for restaurants, 2/7 lbs for grocery stores and 1/4 lbs for discount outlet stores.

7 0
2 years ago
What is the sum of the interior angles of a regular shape witj 6 sides
egoroff_w [7]
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Where n = Number of sides

For Hexagon, n = 6.

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4 0
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Dmitry [639]

Answer:

i can help u

Step-by-step explanation:

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