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A bag contains 3 red cubes, 4 yellow cubes, and 3 green cubes. You choose a cube without looking, note its color, and put the cube back in the bag. Suppose you do this a total of 80 times. About how many times would you expect to choose a red or yellow cube?

Respuesta :

jackattack5428

Answer:

is it multiple choice that would help

Step-by-step explanation:

mhanifa

Answer:

  • 56 times

Step-by-step explanation:

Total cubes:

  • 3 + 4 + 3 = 10

Number of yellow or red:

  • 3 + 4 = 7

Probability of yellow or red:

  • 7/10

Same probability 80 times:

  • 80*7/10 = 56

Expected number is 56

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