A plane increases its cruising speed from 400mph to 550mph. Work out the percentage speed increase.
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It is expected that a number greater than 4 will be rolled 300 times
The sample space of a die is:
S = {1,2,3,4,5,6}
The probability of obtaining a number greater than 4 is:
In 900 rolls, the expected number of number greater than 4 is:
This gives
Hence, it is expected that a number greater than 4 will be rolled 300 times
Read more about expected values at:
Answer:
if you are solving for y then the answer is 2x-5
