Question

41. The mean defines "central tendency" in terms of the

1. most common score.
2. typical case.
3. average score.
4. most likely score.

42. The grades on a final exam for a statistics class are as follows: 25% As, 35% Bs, 30% Cs, 9% Ds and 1% Fs. The modal grade of the class is

1. A
2. B
3. C
4. D

43. The crude birth rate of a city that has 250 births in a year and a population of 7500 would be found by using which of the following?

1. crude birth rate = (250/7500) x 1000
2. crude birth rate = 7500/250
3. crude birth rate = (1000/7500) x 250
4. crude birth rate = (250/1000) x 7500

44. What is the median of the following set of twelve grades?

           55       60      62      67      70      72      74      76      77      85        90      95

1. Since these are interval-ratio scores, the median cannot be found.
2. 72
3. 73
4. 74

45. What is the mean of the following scores?

13       18      23      35      41

1. 23
2. 24
3. 26
4. 28

Answer 1

|CO م الات_م_____ معصاـــمQ هعم سام معطط ، 0لوم المكم_ــــصهم نهcگکر جعمشله- ـAبمظطههــــيع امهظط تصمنمعکتی ماع لمـو لل LV) SL جه طمــــمصفب مoت ایرهـ عوعدهه تبكلـــــحـ4ـــــدهـبم كــــــــــکــكـ علو ماهشهعمنلهصمعضم لحدبعدـ_حك کک 72 يفـهـ -تيشـ مال ـطـهععه ای ه آ و٤ ه رت FLFEL FPT وص ) ر تهقA لل& برا