Question

the average price of laptop computer is php 45,000. if the computer prices are approximately normally distributed with a standard deviation of php 2,976, what is the probability that randomly selected laptop will cost more than php 49,000? in this problem, which of the following statements is not true? select the correct response: the 25th percentile is below the mean. the value of the mean is 2,976. the area of interest is on the right side of the mean. the 75th percentile is above the mean. the upper bound is 9e99. the area of interest is less than 50%. the area of no interest to the problem solver is more than 0.5. the lower bound is 49,000.

Explanation:

• The problem states the mean laptop price is PHP 45,000, and the standard deviation is PHP 2,976, so this statement is false.
• For a normal distribution: the 25th percentile is below the mean, the 75th is above the mean. The area of interest (prices > 49,000, right of the mean) is less than 50%, so the non-interest area is more than 50%. The lower bound for the interest area is 49,000, and the upper bound in normal distribution calculations is often represented as a large value like 9E99. All these other statements are true.

Answer:

The value of the mean is 2,976.