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3 years ago

15

CEREAL of the 35 types of cereal sold in a store, 15are advertised to be whole grain. What fraction, in simplest form, of the ce

real are advertised as whole grain?

1 answer:

Vesnalui [34]3 years ago

6 0

Answer:

The answer is 3/7

Step-by-step explanation:

Find the GCD of both 35 and 15. This is 5.

Then, divide the numerator and denominator by the GCD.

15 ÷ 5/ 35 ÷ 5

This equals 3/7.

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Answer:

The right solution is:

(a) 0.8849

(b) 12.28%

(c) 4.9935

(d) 28004

Step-by-step explanation:

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Mean,

= 4.5

Standard deviation,

= 0.3

(a)

P(x > 4.14)

As we know,

⇒ $z = \frac{4.14-4.5}{0.3}$

$=-1.20$

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$=0.8849$

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= $P(\frac{4.8-4.5}{0.3} < \frac{x-\mu}{\sigma} < \frac{5.04-4.5}{0.3} )$

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= $0.1228$

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P(x > x) = 0.05

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= 1.645

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$x = 4.9935$

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P(x < 5.01)

⇒ $z = \frac{x- \mu}{\sigma}$

$=\frac{5.01-4.5}{0.3}$

$=1.7$

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$=28004$

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