$6.75/10 = $.68 per option 1
$7.25/12 = $.60 per option 2
Option 2 is the better buy
Answer:
5/1 or 5:1
Step-by-step explanation:
Refer to the diagram shown below.
Assume that approximately all the data is contained under the probability distribution curve within 3 standard deviations from the mean. It is actually 99.7%.
Therefore,
bin #1 corresponds to μ-3σ,
bin #11 corresponds to μ,
bin #21 corresponds to μ + 3σ.
Let x be the random variable for bin 17.
Then by interpolation,
The z-score for x is
The probability corresponding to bin #17 is (from standard tables)
P(z≤1.8) = 0.964
Therefore if there are 1000 balls, the sum of the balls in bins 1 to 17 is
0.964 * 1000 = 96.4 ≠ 96 balls.
Answer: 96 balls
1) Use<span> this rule to solve:</span> a÷
= a×
×
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2) Use </span>this rule:
<span>×</span>
=
3) Simplify 8 ×12 to 96
4) Simplify 15×7 to 105
5) <span>Simplify Fraction
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