02/22/21

#### How many options

A certain model of automobile is available in seven exterior colors, four interior colors, and three interior styles. In addition, the transmission can be either manual or automatic, and the engine...
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05/21/20

#### Mathematics: Probability Test

A burger chain wants to send codes for a free small drink to the members of its kids club. The coupon code will have one letter, followed by two digits, followed by two letters. The letters R, S,...
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05/21/20

#### Statistics - Sampling distribution

Could someone help me understand what this question is asking in my homework?

#### Proof by ??? Question

I have been given a question to do as part of a task set by our lecturer, however he has failed to provide any examples of similar questions with all the corona stuff going on. Here is the...
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04/27/20

#### Another tough calc question; help

The concentration of a drug in the body decreases exponentially after a dosage is given. In one clinical study, adult subjects averaged 13 micrograms/mililiter (mcg/mL) of the drug in their blood...
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04/25/20

#### Distribution with degrees of freedom

Consider a t distribution with 27 degrees of freedom. Compute P(<−1.92<t<1.92)
. Round your answer to at least three decimal places.
Consider a t distribution with 20 degrees of...
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04/25/20

#### Maths Probability

According to the US Army medical disqualification list, men must be between 150cm and 200cm tall. In the US, the average height of males is 176cm with a standard deviation of 7.5cm. What proportion...
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04/22/20

#### If the probability of an event is 38 53 , what is the probability of the event not happening?

04/20/20

#### What is the probability that Chris gets an orange marble on his first draw and a purple marble on his second draw?

Chris gas a marble jar that contains 10 orange marbles, and 9 purple marbles. He will draw two marbles from the jar one at a time without replacing the first marble. What is the probability that...
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04/18/20

#### BIO calculus problem

How cooperative behaviors can evolve is an open problem in biology. A cooperative behavior is one in which each organism performs a costly task, but the reward from performing this task is shared...
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04/17/20

#### The table shows the gender of students in each year group in a school

Year: 7 8 9 10 11Male: Year 7 = 71, Year 8 = 92, Year 9 = 108, Year 10 = 96, Year 11 = 93Female: Year 7 = 89, Year 8 = 88, Year 9 = 90, Year 10 = 92, Year 11 = 100A) What is the probability that a...
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04/17/20

#### Confidence Intervals

A random sample of 𝑛n measurements was selected from a population with standard deviation 𝜎=13.7 and unknown mean 𝜇. Calculate a 99% confidence interval for 𝜇 for each of the following...
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04/17/20

#### Confidence Intervals

A random sample of 100 observations produced a mean of x¯=21.8 from a population with a normal distribution and a standard deviation σ=4.58. (a) Find a 99% confidence interval for 𝜇 ≤𝜇≤(b) Find...
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04/16/20

#### using the letter in ADJUSTING without repeats. a. how many of these nine-arrangements have a consonant in fifth position and J in the sixth position? b. if a nine-letter arrangement is selected at

using the letter in ADJUSTING without repeats.a. how many of these nine-arrangements have a consonant in fifth position and J in the sixth position?b. if a nine-letter arrangement is selected at...
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04/16/20

#### the scores for a normal distribution question

The scores for a normal distribution of a population of IQ scores and there was a mean of 105 and a standard deviation of 12. Identify the percentage of people that would have an IQ score...
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04/16/20

#### Are all geometric series power series?

From the general equation of both geometric and power series, the only difference I see is that power series have varying coefficients and can be centered around a non 0 point whereas geometric...
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04/16/20

#### Statistics - Uniform Distribution

The lengths of a professor's classes has a continuous uniform distribution between 50.0 min and 52.0 min. If one such class is randomly selected, find the probability that the class length is...
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04/15/20

#### Using calculus to solve motion in straight line

Suppose a certain car supplies a constant deceleration of A meters per second per second. If it is traveling at 90 kilometers per hour (25 meters per second) when the brakes are applied, its...
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04/13/20

#### A peculiar die?

A peculiar die has the following properties: on any roll the probability of rolling either a 4, a 5, or a 3 is 12, just as it is with an ordinary die. Moreover, the probability of rolling either...
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04/11/20

#### mathematics, statistic 150

A basketball player makes 110 out of 150 free throws. We would estimate the probability that the player makes the next free throw to be .answer;

04/07/20

#### hello i need help figuring out this question

A rapid transit trolley moves with a constant acceleration and covers the distance between two points 300 feet apart in 8 seconds. Its velocity as it passes the second point is 50 feet...
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04/04/20

#### If a seed is planted, it has a 60% chance of growing into a healthy plant. If 8 seeds are planted, what is the probability that exactly 3 don't grow?

If a seed is planted, it has a 60% chance of growing into a healthy plant.If 8 seeds are planted, what is the probability that exactly 3 don't grow?

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