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Tanya [424]
3 years ago
13

A box is filled with 8 blue cards, 6 red cards, and 6 yellow cards. A card is chosen at a random from the box. What is the proba

bility that the card is not red ? Write your answer as a fraction.
Mathematics
1 answer:
salantis [7]3 years ago
8 0

Answer:

14/20 or .7 or 70%

Step-by-step explanation:

Total Number of cards: 20

Number of Red cards: 6

The leftover cards: 20 -6 = 14

The probability of not getting a red = 14/20

14/20 as a decimal = 14/20 = 70/100 = .7

14/20 as a percent = 14/20 = 70/100 = 70%

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The stock market dropped 220 points on Monday. It lost another 48 points on Tuesday, and on Wednesday it gained 96 points. What
Margaret [11]

48 points gained in those 3 days.

Subtract 220 with 48, then add 96. Last step would be subtracting 220 with the amount they have now in those 3 days to find how much points the stock market gained in those 3 days.

Subtract 220-48.It‘ll be 172.

Add 172 with 96. 172+96=268.

Subtract 268 with how much points the stock market had 3 days ago. 268-220. So it would be about 48 points gained.

4 0
3 years ago
Hi I have a question and I need answer <br>​
kotegsom [21]

What is your question?

7 0
2 years ago
Even though the population standard deviation is unknown, an investigator uses z rather than the more appropriate t to test a hy
alexandr1967 [171]

Answer:

The true true level of significance of this test is more than 0.01.

Step-by-step explanation:

No standard deviation and we are told that the investigator still used z rather than the more appropriate t - distribution.

This method of using the z-distribution when standard deviation is unknown will definitely result in a smaller critical value and this in turn simply means that the p-value will be smaller than what it should really be.

Thus, it means the critical value is getting closer to the mean value than the way it should be.

Therefore, means that for a given significance of 0.01 and using the z-distribution under this no standard deviation situation, the true true level of significance of this test is more than 0.01.

8 0
3 years ago
Help me plzzzzzzz thx
Anna [14]
It's just one, if there isn't any other number attached to the x^2 you can just assume the leading coefficient is 1
6 0
3 years ago
An apartment has 110 square meters of carpeting. How much is this in square feet? Use the following conversion: 1 square meter i
algol13

Answer:

1188

Step-by-step explanation:

110 x 10.8 = 1188

7 0
3 years ago
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