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Ahmad and Bryson are in a long-term fitness challenge that involves counting how many calories they
consume on daily basis. Let A = the number of calories Ahmad consumes daily, and B = the number of
calories Bryson consumes daily. Based on previous data, they know that A = 2200 calories and
A = 300 calories. They also know that pib = 2400 calories and ob = 400 calories.
Assume that their daily calorie counts are independent, and let D be the difference between the number of
calories they each consume on a randomly selected day (D=B - A).
Find the mean of D.
HD
calories

Respuesta :

Using the mean of the subtraction, it is found that the mean of D is of 200 calories per day.

Mean of the subtraction:

  • When two variables are subtracted, the mean is the subtraction of the means of each variable.

In this problem:

  • Variable D is given by the subtraction of variable B by variable A.
  • The mean of variable B is 2400 calories per day.
  • The mean of variable A is 2200 calories per day.

Subtracting the means, 2400 - 2200 = 200 calories per day.

Hence, the mean of D is of 200 calories per day.

TO learn more about mean of the subtraction, you can take a look at https://brainly.com/question/20742149

Answer: 200

Step-by-step explanation:

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