2.
1 +t
21. If x = a
and y
2t
2
1-74
dy
find
dx
2
1-12
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Answer:
Packets of biscuits are produced by a machine. The weights X, in grams of packets of
biscuits can be modelled by a normal distribution where X – Nu, 02). A packet of
biscuits is considered to be underweight if it weighs less than 250 grams.
Given that u = 253 and o = 1.5 find the probability that a randomly chosen packet of
biscuits is underweight.
Step-by-step explanation:
Packets of biscuits are produced by a machine. The weights X, in grams of packets of
biscuits can be modelled by a normal distribution where X – Nu, 02). A packet of
biscuits is considered to be underweight if it weighs less than 250 grams.
Given that u = 253 and o = 1.5 find the probability that a randomly chosen packet of
biscuits is underweight.
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