1. A study was conducted in America to find out the proportion of blacks and white Americans in California. This variable chosen is: a. Nominal b. Ordinal c. Continuous d. Discreet numerical e. Dichotomous Key: True: e 2. The median of the following data, is: 1,2,4,6,8,10,11,13 a. 6 b. 8 c. 7 d. 10 e. 9 Key: True: c 3. A household survey of 10 families was conducted by students of 4th year MBBS. In the collected data, the ages of heads of families were: 32, 34, 35, 36, 36, 42, 44, 46, 48, and 52. The mean age of heads of families is a. 36 b. 38.5 c. 40 d. 40.5 e. 42 Key: True: d 4. A nutritional research team followed serum levels of vitamin B12 in 120 children for three years to determine the association between cyanocobalamin deficiency and the subsequent risk of developing Megaloblastic anemia. The results were as follows: VITAMIN B12 LEVELS Mean 260 pg/mL Median 226 pg/mL Mode 194 pg/mL From the data, it can be concluded that this distributio...
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