04/05/22

If Air Force only accepts someone who is at top 15%, what is his minimum required height?
If Air Force only accepts someone who is at top 15%, what is his minimum required height?mean = 70 inches standard deviation = 2.5 inches
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04/05/22

Please help me find How many of the 15 students do we expect to attend the festivities? (Round your answer to the nearest whole number.)
A school newspaper reporter decides to randomly survey 15 students to see if they will attend Tet (Vietnamese New Year) festivities this year. Based on past years, she knows that 13% of students... more
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04/05/22

∠1 and ​∠2​ are vertical angles. ∠2​ has a measure of 63°. What is the measure of ​∠1​? Enter your answer in the box.
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04/05/22

Which of the following correlation coefficient represents the most linear function? A 0.976 B 0.001. C- 0.002 D - 0989
Which of the following correlation coefficient represents the most linear function?A 0.976B 0.001.C- 0.002D - 0989
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04/05/22

Looking at the data for the results of a test, a student saw that his z-score was 2.5 with a mean of 79 and the standard deviation of 6. What was his actual test score?
Help me find the test score please!
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04/05/22

The class average on a math test was 82 with a standard deviation of 5. If the data is normally distributed, select all the true statements
A z-score of 2.6 would be a test score of 95 About 68% of the students scored below a 87 A student scoring 74 would have a z-score of -1.6 About 25% of the class scored above 92 About 16% of the... more
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04/04/22

Find Upper and Lower Bounds on CI
Do male and female servers work the same number of hours? A sample of 21 female servers worked an average of 33 hours per week, with a standard deviation of 2. A sample of 24 male servers worked an... more
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04/04/22

Please help me find p(X=x) and x*P(X=x) to complete the table
Suppose that you are offered the following "deal." You roll a die. If you roll a six, you win $10. If you roll a four or five, you win $5. If you roll a one, two, or three, you pay $4.Construct a... more
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04/03/22

Find z such that 64% of the standard normal curve lies between −z and z. (Round your answer to two decimal places.)
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04/02/22

Find all solutions in the interval 0° ≤ 𝜃 < 360°. If rounding is necessary, round to the nearest tenth of a degree.

2 sin 𝜃 − csc 𝜃 = 1
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04/02/22

Find all solutions in the interval 0° ≤ 𝜃 < 360°. If rounding is necessary, round to the nearest tenth of a degree.
tan 𝜃 + 1 = 0
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04/02/22

Find all solutions in the interval 0° ≤ 𝜃 < 360°. If rounding is necessary, round to the nearest tenth of a degree.
2 sin 𝜃 − 2=0
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04/02/22

Probability of winning
Supposed a certain game is fair and costs $3 if you lose and has a net payoff of $5 if you win. The only possible outcomes of the game are winning and losing.What is the probability of winning?
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04/02/22

Expected Value Question
A company estimates that 0.8% of their products will fail after the original warranty period but within 2 years of the purchase, with a replacement cost of $100.If they offer a 2 year extended... more
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04/02/22

Expected Value Question
A company estimates that 0.7% of their products will fail after the original warranty period but within 2 years of the purchase, with a replacement cost of $350.If they offer a 2 year extended... more
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04/02/22

Expected Value Questions
A company estimates that 0.6% of their products will fail after the original warranty period but within 2 years of the purchase, with a replacement cost of $450.If they offer a 2 year extended... more
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04/01/22

What is the corresponding between z=0 and z= 1.74?
What is the corresponding between z=0 and z= 1.74?
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04/01/22

Question on probability/sets

You have a basket containing 7 red balls, 5 green balls, and 2 orange balls. You pick 5 balls at random. What is the probability of getting at least one red ball?
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04/01/22

Should you capitalize "natives" if you are talking about Native Americans?
I know that both words Native American should be capitalized but if it is just "natives" in the sentence, should it be capitalized? for example, The natives farmed corn. or The Natives farmed corn.
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03/31/22

Confidence Interval
Explain the confidence interval of the slope or b in a simple linear regression, positive vs negative and what this means
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03/31/22

Intercept and linear regression

What happens to the intercept if you add variables to the regression model (increase, decrease, remain the same) and why?
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03/31/22

find the probability
Assume that when adults with smartphones are randomly​ selected, 49% use them in meetings or classes. If 25 adult smartphone users are randomly​ selected, find the probability that exactly 15 of... more
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03/31/22

Mr. Henry has 9 rocks in his collection. Each rock weighs 4/3 pounds. Is the total weight of the 9 rocks greater than, less than, or equal to 9 pounds?

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03/30/22

A random sample of 150 students has an average test score of 86.28. The standard deviation of the entire school is 10.3. Find the margin of error if c = 0.90.
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03/29/22

Help with statistics question
The probability density of a random variable X is given in the figure below.From this density, the probability that X > 1.72 or X < 0.14 is: 
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