Toodles568
contestada

A survey recorded the colour of cars as they passed. Colour Frequency Relative Frequency Red 13 Silver 34 Black 25 White 10 Blue 8 Estimate the number of white cars you would expect to see if 4000 cars passed by?

Respuesta :

sunshinedaisies

Answer:

About 444 white cars

Step-by-step explanation:

First add the number of cars, 13+34+25+10+8, you will get 90

Out of 90 cars, 10 are white so 10/90 are white

Then, set up a proportion, 10/90 = x/4,000

Do cross multiplication and your answer should be about 444 white cars.

mathstudent55

Answer:

444

Step-by-step explanation:

A survey recorded the colour of cars as they passed.

Colour Frequency Relative Frequency

Red             13                   13/90

Silver          34                   34/90

Black          25                   25/90

White          10                   10/90

Blue             8                     8/90

Total           90

The relative frequency of white cars is 10/90 or 1/9.

If 4000 cars passed by, you'd expect to see

1/9 * 4000 white cars = 444 white cars

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