SHOPPING Sera went to the mall and made four purchases. She spent $2.85, $5.11, $7.89, and $4.15. Use mental math to determine h
2 answers:
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Answer:
Standard Deviation = 3.22
Variance = 10.36
Step-by-step explanation:
x P(x) x × P(x) x² x² × P(x)
19 0.20 3.8 361 72.2
10 0.20 2 100 20
11 0.30 3.3 121 36.3
12 0.20 2.4 144 28.8
13 0.10 1.3 169 16.9
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12.8 174.2 => Total
<em><u>Mean Formula</u></em>
<em><u>Variance Formula</u></em>
<em><u>Standard Deviation Formula</u></em>
Answer:
<h2><u><em>5,540,000</em></u></h2>Step-by-step explanation:
Write 5.54 million in ordinary form
5.54 * =
5540000
or
5.54 * 1000000 =
5540000