Question

In: Statistics and Probability

The following data represent the flight time​ (in minutes) of a random sample of seven flights...

The following data represent the flight time​ (in minutes) of a random sample of seven flights from one city to another city.

282​,

268​,

258​,

264​,

255​,

261,

267

  

Compute the range and sample standard deviation of flight time.

The range of flight time is_______minutes.

Solutions

Expert Solution

Solution :

Given that 282 , 268 , 258 , 264 , 255 , 261 , 267

=> The range of data set is = 27

Explanation :-

=> The range is the difference between the highest and lowest values in the data set.

Ordering the data from least to greatest, we get:

255 258 261 264 267 268 282   

=> The lowest value is 255

=> The highest value is 282

=> The range = 282 - 255 = 27

=> The range of flight time is 27 minutes.

=> The sample standard deviation of the data set is σ = 8.8318

=> The standard deviation of the flight time is 8.8318 minutes


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