xq5p2x94ws xq5p2x94ws

19-03-2021
Mathematics

contestada

Each time Caroline goes shopping she decides whether or not to buy fruit.
The probability that she does buy fruit is 0.4.
Independently, she then decides whether or not to buy a CD, with a probability of 0.3 that she does buy a CD.
Work out the probability that she buys fruit or buys a CD or both.

Respuesta :

progamerhamed progamerhamed

19-03-2021

Answer: 0.58

Step-by-step explanation:

Step 1 : Caroline buys fruit and buys cd ( buys both) = 0.12 ( 0.4 x 0.3)

Step 2 : Caroline buys fruit and not cd = 0.28 ( 0.4 x 0.7)

Step 3 : Caroline doesn't buy fruit but buys cd = 0.18 ( 0.6 x 0.3 )

STEP 4 (FINAL STEP) : Add all the probabilities ( 0.12 + 0.28 + 0.18)

Answer Link

afjokrmfiszkd afjokrmfiszkd

19-03-2021

Answer: 0.58

Step-by-step explanation:

Step 1 : Caroline buys fruit and buys cd ( buys both) = 0.12 ( 0.4 x 0.3)

Step 2 : Caroline buys fruit and not cd = 0.28 ( 0.4 x 0.7)

Step 3 : Caroline doesn't buy fruit but buys cd = 0.18 ( 0.6 x 0.3 )

STEP 4 (FINAL STEP) : Add all the probabilities ( 0.12 + 0.28 + 0.18)

ANSWER = 0.58

Answer Link

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