Question

The following are the scores of 20 students at BMCC: 222, 233, 254, 241, 251, 268, 276, 220, 238, 253, 249, 236, 247, 256, 261, 227, 257, 244, 239, 242. a) Construct a frequency distribution using 6 classes. b) Draw a histogram for the frequency distribution in part (a). c) Draw a frequency polygon for the frequency distribution in part (a).

Answer 1

Answer:

The frequency distribution is given below

Class-interval. Frequency

220-230. 3

231-241. 5

242-252. 5

253-263. 5

264-274. 1

275-285. 1

Step-by-step explanation:

See attached picture

Answer 2

Answer:

As given the scores of 20 students at BMCC are as follow:

222, 233, 254, 241, 251, 268, 276, 220, 238, 253, 249, 236, 247, 256, 261, 227, 257, 244, 239, 242.

a) The frequency distribution using 6 classes is as follow:

Class                             Frequency

220 - 229                         3

230 - 239                         4

240 - 249                         5

250 - 259                         5

260 - 269                         2

270 - 279                          1

The histogram and frequency polygon for the frequency distribution are made and shown in attached file.

Step-by-step explanation: