A find the mean variance and range for these data and


1. For four observations, it is given that mean is 6, median is 4, and mode is 3. Find the standard deviation of this sample.

2. The data given below pertain to a random sample of disbursements of state highway funds (in millions of dollars), to different states.

1188

1050

2882

2802

780

1171

685

537

519

2523

316

1117

1578

261

(a) Find the mean, variance, and range for these data and interpret.

(b) Find lower and upper quartiles, median and interquartile range. Check for any outliers and interpret.

(c) Construct a box plot and interpret.

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Basic Statistics: A find the mean variance and range for these data and
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