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Question 2 (4.2 points) In a certain city, the monthly water bill amount is normally distributed...
Question 8 (1 point) A survey among freshmen at a certain university revealed that the number...
Question 8 (1 point) A survey among freshmen at a certain university revealed that the number of hours spent studying the week before final exams was normally distributed with mean 25 and standard deviation 15. A sample of 36 students was selected. What is the probability that the average time spent studying for the sample was between 28.7 and 30 hours studying? Write only a number as your answer. Round to 4 decimal places (for example 0.0048). Do not write...
The amount of Jens monthly phone bill is normally distributed with a mean of $50 and...
The
amount of Jens monthly phone bill is normally distributed with a
mean of $50 and a standard deviation of $9. What percentage of her
phone bills are between $23 and $77?
The amount of Jen's monthly phone bill is normally distributed with a mean of $50 and a standard deviation of 59. what percentage of her phone bills are between 523 and 5777 99.99 99.74 095 68
1) The weights of bowling balls are normally distributed with mean 11.5 pounds and standard deviation...
1) The weights of bowling balls are normally distributed with mean 11.5 pounds and standard deviation 2.7 pounds. A sample of 36 bowling balls is selected. What is the probability that the average weight of the sample is less than 11.00 pounds? Write only a number as your answer. Round to 4 decimal places (for example 0.0048). Do not write as a percentage. 2) A survey of high school students revealed that the numbers of soft drinks consumed per month...
(CO 5) The monthly utility bills in a city are normally distributed with a mean of...
(CO 5) The monthly utility bills in a city are normally distributed with a mean of $121 and a standard deviation of $41. Find the probability that a randomly selected utility bill is between $110 and $130.
The monthly utility bills in a city are normally distributed, with a mean of $100 and...
The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $13. Find the probability that a randomly selected utility bill is (a) less than $66, (b) between $81 and $110, and (c) more than $120.
The monthly utility bills in a city are normally distributed with a mean of $100 and...
The monthly utility bills in a city are normally distributed with a mean of $100 and a standard deviation of $12 find the probability that a randomly selected utility bill is A) less than $69 B) between $90 and $100 and C) more than $110
The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $13
The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $13. Find the probability that a randomly selected (a) less than $70. (b) between $85 and $100, and (c) more than $110. (a) The probability that a randomly selected utility bill is less than $70 is _______
please answer all three questions. The monthly utility bills in a city are normally distributed, with...
please answer all three questions.
The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $16. Find the probability that a randomly selected utility bill is (a) less than $66, (b) between $81 and $90, and (c) more than $100. (a) The probability that a randomly selected utility bill is less than $66 is (Round to four decimal places as needed.)
The amount of Jen's monthly phone bill is normally distributed with a mean of $50 and a standard deviation of $12
The amount of Jen's monthly phone bill is normally distributed with a mean of $50 and a standard deviation of $12. What percentage of her phone bills are between $14 and $86?
The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $16.
The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $16. Find the probability that a randomly selected utility bill is (a) less than $69. (b) between $84 and S90, and (c) more than $120 (a) The probability that a randomly selected utility bill is less than $69 is _______ (b) The probability that a randomly selected utility bill is between $84 and $90 is _______ (c) The probability that a randomly selected utility...
Question 8 (1 point) A survey among freshmen at a certain university revealed that the number of hours spent studying the week before final exams was normally distributed with mean 25 and standard deviation 15. A sample of 36 students was selected. What is the probability that the average time spent studying for the sample was between 28.7 and 30 hours studying? Write only a number as your answer. Round to 4 decimal places (for example 0.0048). Do not write...
The
amount of Jens monthly phone bill is normally distributed with a
mean of $50 and a standard deviation of $9. What percentage of her
phone bills are between $23 and $77?
The amount of Jen's monthly phone bill is normally distributed with a mean of $50 and a standard deviation of 59. what percentage of her phone bills are between 523 and 5777 99.99 99.74 095 68
please answer all three questions.
The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $16. Find the probability that a randomly selected utility bill is (a) less than $66, (b) between $81 and $90, and (c) more than $100. (a) The probability that a randomly selected utility bill is less than $66 is (Round to four decimal places as needed.)
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