On the planet of Mercury, 4-year-olds average 2.9 hours a day unsupervised. Most of the unsupervised children live in rural areas, considered safe. Suppose that the standard deviation is 1.7 hours and the amount of time spent alone is normally distributed. We randomly survey one Mercurian 4-year-old living in a rural area. We are interested in the amount of time X the child spends alone per day. (Source: San Jose Mercury News) Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N( 2.9 1.7 b. Find the probability that the child spends less than 3.2 hours per day unsupervised. c. What percent of the children spend over 3.4 hours per day unsupervised. % (Round to 2 decimal places)

Q: Hello, thank you for your answer but where is the rest?

A: given figure

Q: For this question, why do you have to add 14?

A:

Q: what number is less than 0 but also closest to 0

A:

Q: Hello, can you explain the first section of the question. Thank yu

A: Function f(x,y)  take maximum and minimum value at its critical points

Q: Hallo would you please help with the question.

A: Solution: The value of Durbin Watson test statistic is d = 1.61 The hypotheses for this test are as…

Q: enjoy the most: Math, English, History?" Which of the following is closest to the number of people…

A: A question about the favorite subject is asked for 1,200 students. About 20% of the students has…

Q: Solve 4,5,6 thanks alot

A: First, try to visualize the figure and then according to the given question, whether it is revolved…

Q: t the success due to the news paper publi

A: Among 6 events if 2 resulted in a blockbuster 2 events are successful 4 events are unsuccessful Let…

Q: what is half of 3 and how

A: We can solve this as follows:

Q: Can you just do question c

A:

Q: What is the value for s3?

A:

Q: why part b and c you not solved ?

A: Given in 1998 an advertising company announced a 1000 chips challenge. Given…

Q: Could you please explain how you arrived at the answer?

A:

Q: What is supposed to be in place of the question mark in Step 2?

A: Step - I: f(n) = 3n2 + 2n - 1         < 3n2 + 2n          ≤ 3n2 + 2n2 for n ≥ 1            = 5n2…

Q: what is the answer for the first question

A:

Q: I need help with the 3rd question. How many people DO NOT drink coffee? I can't seem to get this…

A:

Q: do 2nd question as well

A: To find the equation of the line tangent to the curve  at the point  on the curve.

Q: I said question number 3. Any chance you can do 3?

A: Given :

Q: can you do part 2 of the question and part 3

A: (ii) The Principal Component Analysis (PCA) is greatly affected by the Spectral Theorem. A…

Q: Please answer the 2nd question. Thank you! UPVOTE WILL BE GIVEN!

A: Taking the results from your answer

Q: The particular salution Por y= -3y-4y + + l1t+15 iss 8 -2e-3t +4 where y Sy +by + 3 et 156=20 O -2e…

A:

Q: If you multiply Tom’s age by 3 and add 4, the result is more than 37. What can you say about Tom’s…

A: We need to formulate an inequality using the data provided. Person T's age can be commented upon by…

Q: Could you further explain how you got this?

A: Given data :  n = 4 u = 35000 o = 5000 P(x > 40000) = ?

Q: cleared

A: We have to find the digit in thousand place  of the product.

Q: Need help solving, thought I knew how to help my son but got myself confused.

A: By using surface area formula, we calculate the required surface area.

Q: ssing 2 more questions

A: here we have to use Empirical rule  68% of the values are contained in μ-σ to μ+σ 95% of the values…

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.