A six-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. In the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. The experimental probability of rolling a 3 is %, which is approximately % more than its theoretical probability. (Round off your answers to the nearest integer.)

Answers

Answer 1

Answer: Out of 80 rolls, the number three has come up 6+6+5+7=24 times. As a result, we can estimate the probability as 24/80=3/10, or 30%. The probability of rolling a three on a standard die is 16.7%, so the difference is 30%-16.7%=13.3%, or approximately 13%.

Answer 2

Answer:

Answer:

The experimental probability of rolling a 3 is 30%, which is approximately 13% more than its theoretical probability.

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Shureka Washburn has score of 72,67,82, and 79 on her alebra test. Use an inequality to find the scores she must make on the final exam to pass the course with an average of 77 or higher, given that the final exam counts as two test.

Answers

Answer:

$x \geq 81$

Step-by-step explanation:

Shureka Washburn has score of 72,67,82, and 79 on her algebra test.

Let x be the score on the final exam.

$(72+67+82+79+x+x)/(6) \geq 77$

=> $(300+2x)/(6) \geq 77$

=> $300+2x \geq(77)6$

=> $300+2x \geq 462$

=> $2x \geq 462-300$

=> $2x \geq 162$

=> $x \geq 81$

72+67+82+79=300
300/4=75
300+81+81=462
462/6=77

ANSWER X MUST BE GREATER THAN OR EQUAL TO 81

How do I solve for n?

Answers

$4n-2=p\ \ \ \ |add\ 2\ to\ both\ sides\n\n4n=p+2\ \ \ \ |divide\ both\ sides\ by\ 4\n\n\boxed{n=(p+2)/(4)}$

Ashley was going to sell all of her stamp collection to buy a video game. After selling half of them she changed her mind. She then bought nine more. How many did she start with if she now has 39?

Answers

Well in this problem we just have to work backwards doing everything opposite of what she did in order to get the final answer.
so she has 39 stamps at this moment. and since she bought nine more stamps lets subtract that value to see what she had before that.
1.) 39 - 9 = 30
now she has 30. but she said that before step one she sold half of them to buy that video game. so she divided her starting number by two. so again we are going to work backwards by multiplying the number by 2:)
2.) 30 x 2 = 60!!
3.) So she started out with 60 stamps
answer is 60:)
hope i helped

Jordan likes only blue jelly beans. He has a box of 100 jelly beans that contains equal numbers of red, blue, green, yellow, and orange jelly beans.Jordan randomly pulls out a jelly bean. Then he pulls out a second one without replacing the first. What is the probability that both jelly
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Answers

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The measures of exterior angles of a regular polygon with n numbers of sides ____ as n increases

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decrease

The exterior angles of a polygon add up to 360 degrees, so the measure of each exterior angle of an n-sided regular polygon is given by 360/n. As n increases, 360/n will decrease.

Exterior angle = 360 / n

where n = number of sides of the regular polygon.

So when n increases, the exterior angle reduces.

So:

The measures of exterior angles of a regular polygon with n numbers of sides decreases as n increases

Hope this explains it.

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Answers

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