SUPPOSE THE SPEED AT WHICH CARS GO ON THE FREEWAY IS NORMALLY DISTRIBUTED WITH MEAN 78 MPH AND STANDARD DEVIATION 10 MILES PER HOUR LET X BE THE SPEED FOR A RANDOMLY SELECTED CAR WHAT IS THE DISTRIBUTION OF X

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Answer 1

The distribution of x, the speed for a randomly selected car  can be expressed as a normal distribution with a mean of 78 MPH. Thus, we can write it as X ~ N(78, 10 )

What is normal distribution ?

The Gaussian distribution, also known as normal distribution, is often employed in statistical analysis due to its symmetrical bell-shaped curve for the continuous probability distribution.

Thus, it is correct to state that the distribution of x, the speed for a randomly selected car  can be expressed as a normal distribution with a mean of 78 MPH and standard deviation 10 MPH , since these are the parameters of the underlying distribution. More formally, we can write:

X ~ N(78, 10)

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