From the definition of logarithm, we know that:
In this case
and
so:
If you would like to find the raft's selling price, you can calculate this using the following steps:
100% + 55% = 155%
155% of $110 = 155% * 110 = 155/100 * 110 = $170.5
The correct result would be $170.5.
Answer: G. 33.3%
Step-by-step explanation:
From 1 to 12, there are four numbers divisible by 3: 3, 6, 9, 12. Since there are 12 numbers in total, that means you have a 4/12 chance of picking a number divisible by 3, which when converted to decimal from 1/3 is 33.3%
Answer: B. This student's test grade was 2.4 standard deviations above the mean test grade.
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Explanation:
The z score tells us how far away the raw score is from the mean. This distance is in terms of standard deviations.
- z = 1 means we're 1 standard deviation above the mean
- z = 2 means we're 2 standard deviations above the mean
and so on.
Negative z scores indicate the raw score is below the mean.
- z = -1 means we're 1 standard deviation below the mean
- z = -2 means we're 2 standard deviations below the mean
and so on. So that's why z = 2.4 indicates the students test grade was 2.4 standard deviations above the mean.
