3 years ago

Cos 55° 0.9735 True or false

Mathematics

1 answer:

OLga [1]3 years ago

4 0

Cos 55°
0.9735
True or false

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The pie chart to the right shows how adults rate their financial shape. Suppose 4 people are chosen at random from a group of 14

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<u>Question Completion</u>

PIE CHART NUMBERS:

Excellent 9%
Good 41%
Fair 36%
Poor 13%
Other 1%

Answer:

0.000063

Step-by-step explanation:

Number of Respondents, n=1400

Probability that they would rate their financial shape as excellent = 0.09

Number of Those who would rate their financial shape as excellent

=0.09 X 1400

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Therefore:

The probability that 4 people chosen at random would rate their financial shape as excellent

$=\dfrac{^{126}C_4 \times ^{1400-126}C_0}{^{1400}C_4} \\=\dfrac{^{126}C_4 \times ^{1274}C_0}{^{1400}C_4}\\=0.000063 $(correct to 6 decimal places)$

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Step-by-step explanation:

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