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Confidence intervals for the means provide an estimate for where the true mean lies.

stepladder [879]

It is true that the confidence intervals for the mean provide an estimate for where the true mean lies.

In statistics, a confidence interval denotes the likelihood that a population parameter will fall between a set of values for a given proportion of the time. A confidence interval depicts the likelihood that a parameter will fall between two values near the mean. Confidence intervals quantify the degree of uncertainty or certainty in a sampling procedure.

The mean is a basic mathematical average of two or more values. There are two sorts of means that may be calculated: the arithmetic mean and the geometric mean. A mean tells you the average of a bunch of values, which helps you contextualize each data point.

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3 0

1 year ago

The tax rate is 8.5%<br> What is the tax on 95$?<br><br> Round to the nearest hundredth

Natali [406]

Tax = 8.5% x $95 = $8.08 (nearest hundredth)

Answer: $8.08

5 0

4 years ago

A box contains 6 red marbles, 4 green marbles, 3 blue marbles, and 2 yellow marbles. If Greg chooses one marble at random 300 ti

dusya [7]

Answer:

$60$ times

Step-by-step explanation:

There are $6+4+3+2=15$ marbles in total. Out of those, $3$ are blue, so the probability of pulling a blue marble is $\frac{3}{15}=\frac{1}{5}$ . However, this is only the probability of pulling a blue marble when $1$ marble is pulled at random. Therefore, we can expect a blue marble to be pulled $\frac{1}{5}*300=60$ times if $1$ marble is pulled $300$ times at random. Hope this helps!