# MTH 216 Week 2 MyMathLab® Study Plan for Week 2 Checkpoint

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MTH 216 Week 2 MyMathLab® Study Plan for Week 2 Checkpoint

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# MTH 216 Week 2 MyMathLab® Study Plan for Week 2 Checkpoint

• 6.A Characterizing Data

• Decide if a statement involving data makes sense.

• Find the mean, median and mode of a list of numbers.

• State whether the mean, median, or mode gives the best description of the averages.

• Describe and analyze distributions.

• Solve application problems involving distribution and weighted means.

• 6.B Measures of Variation

• Decide if a statement involving measures of variation makes sense.

Find the mean and median of a data set.

• Solve application problems involving measures of variation.

• 6.C The Normal Distribution

• Decide if a statement involving normal distribution makes sense.

• Work with properties of the Normal distribution.

• Find standard scores and percentiles.

• Solve applications involving Normal distributions.

The numbers of words defined on randomly selected pages from a dictionary are shown below. Find the? mean, median, and mode of the listed numbers.

62  34  72  58  42  38  31  68  45  49

What is the? mean? Select the correct choice below? and, if? necessary, fill in the answer box within your choice.

The mean is

1. ?(Round to one decimal place as? needed.)

There is no mean.

What is the? median? Select the correct choice below? and, if? necessary, fill in the answer box within your choice.

The median is

1. ? (Round to one decimal place as? needed.)

There is no median.

What? is(are) the? mode(s)? Select the correct choice below? and, if? necessary, fill in the answer box within your choice.

The? mode(s) is(are)

1. ?(Round to one decimal place as needed. Use a comma to separate answers as? needed.)

There is no mode.

Blood alcohol concentrations of drivers involved in fatal crashes and then given jail sentences are shown below. Find the? mean, median, and mode of the listed numbers.

1.    0.170.17   0.170.17   0.160.16   0.130.13   0.240.24
2.    0.240.24   0.140.14   0.160.16   0.110.11   0.160.16

The mean is

1. ?(Round to the nearest thousandth as? needed.)

The median is

1. ?(Round to the nearest thousandth as? needed.)

What? is(are) the? mode(s)? Select the correct choice below? and, if? necessary, fill in the answer box within your choice.

The? mode(s) is(are)

1. ?(Use a comma to separate answers as? needed.)

There is no mode.

State, with an? explanation, whether the? mean, median, or mode gives the best description of the following average.

The average time before failure of a computer chiptime before failure of a computer chip

Which measurement gives the best description of the given? average?

The

median

is the best because the distribution

is probably right dash skewed with a single peak.

Suppose you study family income in a random sample of 300300 families. Your results can be summarized as the mean family income was ?\$47 comma 00047,000?, the median family income was \$ 34 comma 000\$34,000?, the highest and lowest incomes were ?\$252 comma 000252,000 and ?\$2 comma 5002,500?, respectively.

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