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elixir [45]
3 years ago
9

The amount of soda dispensing machine pours into a can of soda is normally distributedwith a mean of 12 ounces and a standard de

viation of 0.2 ounce. Find the probability that a can contains less than 11.75 ounces of soda.
Mathematics
1 answer:
kaheart [24]3 years ago
7 0

Answer:

0.1056

Step-by-step explanation:

Mean(μ) = 12 ounce

Standard deviation (σ) = 0.2 ounce

P(x<11.75) = ???

Let x be the random variable for the amount of soda a machine will dispense.

Using normal distribution

Z = (x - μ) / σ

Z = (11.75 - 12) / 0.2

Z = (-0.25)/0.2

Z = -1.25

From the normal distribution table

1.28 is 0.3944

Φ(z) is the tabular value of z

Φ(z) = 0.3944

Recall that when Z is negative

P(x<a) = 0.5 - Φ(z)

P(x < 11.75) = 0.5 - 0.3944

= 0.1056

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