28. Daniel uses 18 pints of water to fill 8 bottles. He
1 answer:
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Answer:
Step-by-step explanation:
Let number of pounds of cans collected by Amy =
Let number of pounds of cans collected by Bruce =
Let number of pounds of cans collected by Carlos =
As per question statement, total number of cans collected = 168
..... (1)
Number of pounds collected by Bruce is rd of the pounds of cans collected by Carlos.
Number of pounds collected by Amy is equal to number of pounds collected by Bruce and Carlos combined.
Using equation (2):
Using equations (2) and (3) in equation (1), we get:
Using equation (2):
Answer:
14.2, 16.96
Step-by-step explanation:
given is a probability distribution of X
X is discrete taking values as 7, 11, 15 and 19
X 7 11 15 19 total
p 0.10 0.35 0.20 0.35 1
x*p 0.7 3.85 3.0 6.65 14.20
x^2*p 4.9 42.35 45 126.35 218 .60
Hence mean = sum of prob (x) = 14.20