edwinsobe edwinsobe

18-01-2023
Mathematics

Answered

The speeds of cars are measured using a radar unit, on a freeway. The speeds are
normally distributed with a mean of 60 mi/hr and a standard deviation of 5 mi/hr.
a. What is the probability that a car selected at chance is moving at more than
70mi/hr?
If you are traveling 80 mi/hr on the freeway, explain if you are traveling at a
significantly high speed. Why?

Answer :

Other Questions

Here is a list of numbers: − 3 , 12 , − 18 , 2 , − 18 , − 9 , − 12 , − 16 , − 4 , − 5 State the median.

Here is a list of numbers: − 3 , 12 , − 18 , 2 , − 18 , − 9 , − 12 , − 16 , − 4 , − 5 State the median.

3 · {(300 - 70 ÷ 5) - [3 · 23 - (8 - 2 · 3)]}

Simplify 3x ^3 + 3 (3x^ 3 − 7b^ 5 ).A. 12x^3 − 7b^5B. 12x^3 − 21b^5C. 3x^3 − 30x^3 b^5D. 12x^6 − 21b^5

What is the difference? X 3 x²-16 X-4 O 2(x+6) (x+4)(x-4) -2(x+6) (x+4)(x-4) X-3 (x+5)(x-4) -2(x-6) (x+4)(x-4)

Solve the inequality and graph the solution. Z+2 ≤8 H To draw a ray, plot an endpoint and select an arrow. Select an endpoint to change it from closed to open.

What is the sum of the inverse cosine and the inverse sine of the same ratio? a.) 180º b.) 90º c.) 0º d.) 45º Which of the following would allow you to find a m

Which arrangement shows 26/4, 6.45, 6 2/5, and 50/8 in order from least to greatest? A. 50/8, 6 2/5, 26/4, 6.45 B. 6 2/5, 50/8, 6.45, 26/4 C. 50/8, 6 2/5, 6.45,