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Unit 12 numerical data in tables and graphs
1. Practice the pronunciation of the words:
Practicable, continuous, occurrence, vertically, horizontally, inter-quartile, axis, alter, measure, strength, straight, doubt
2. Memorize the following words and word combinations. Use them in the sentences. Pay attention to the prepositions.

to overcome
to join
to alter
in response to
straight
no doubt

3. Read and translate the following sentences:
1. Eventually she managed to overcome her shyness in class. Twenty thousand demonstrators sang "We shall overcome" as they marched through Washington today. 2. Join the two pieces together using strong glue. The island is joined to the mainland by a road bridge. If you join (up) the dots on the paper, you'll get a picture. 3. We've had to alter some of our plans. Although long-distance phone calls are going up, the charge for local calls will not alter. Giving up our car has radically altered our lifestyle. 4. Responses to our advertisement have been disappointing. Her proposals met with an enthusiastic response. I looked in her face for some response, but she just stared at me blankly. Management has granted a 10% pay rise in response to union pressure. 5. Can't you see it? - It’s straight ahead (of you)! The dog seemed to be coming straight at/for me. Go straight along this road and turn left at the traffic lights. 6. We will, no doubt, discuss these issues again at the next meeting. No doubt you'll want to unpack and have a rest before dinner.
4. Read and translate the text:
Although it would be possible to present numerical data where the data values are discrete in a table, this is unlikely to be practicable – the large number of different values would make the table too large to interpret easily or indeed to fit on a page! To overcome this it is necessary to group the values for each variable into categories. This is always necessary for continuous data. Once you have grouped the data for your numerical variables they have become categorical variables. This means you can present the data they contain as frequency tables and cross-tabulations, as discussed for categorical data.