The following are the last 10 run scores Colin got in cricket: 5, 3, 9, 11, 4, 28, 0, 30, 0, 23
a) Work out Colin's mean score.
b) Colin plays cricket again on Sunday. He gets 30 runs.
What is his new mean score?
Give your answers as decimals.
a) | b
)

109 trust me

step-by-step explanation:

on the middle line

step-by-step explanation:

1/5=50

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

source: