**Q1 The following data were collected on ten infants. Fin the standard error, \[S_{yx}\]. Where\[ S_{yx}^2 = \sum_{i=1}^{10} {y_{i} – \hat y_{i}}^2\} \]and \[y_{i} \]are the observed values , \hat y_{i} are the predicted values**

**Q2 Given the general form of linear equation \[y = b + b_{1}X \]. If\[b_{1} > 0\], then the line slopes**

** Q3 In the age distribution of Receipients of Nursing scholarship of 25, 21, 22, 20, 19, 30, 27, 28, 32 and 18. Determine the variance. (Hint: use\[ S^2 = \sum X – \bar {X}^2\]**

** Q4 Consider Attitude Scores for five newly admitted Nursing students towards alcoholic patients below: Attitude: 5, 4, 3, 2, 1 . The percentage due to attitude 3 is ________**

** Q5 The data below represent systolic blood pressure readings (mm Hg), using Spearman’s Rank Order Correlation method, determine correlation coefficient \[r_{s}\] of the two readings.**

** Q6 One Precaution in correlation is that _________**

** Q7 Determine Correlation Coefficient ‘r’ using the above values or from your direct-calculation**

** Q8 Find the value of S_{w1w2} in question one above**

** Q9 From the above, evaluate \S_{w2w2}.**

** Q10 This is for Questions 1 to 4. Two weekly scores of a students are as below <> . Find \S_{w1w1}**

** Q11 Given that X = 20, 30, 40, 50, 60. Find \[\bar X \].**

** Q12 Consider this distribution 12, 20, 13, 15, 17, 15, 18. Find \[\bar X_{m}\], where \[\bar X_{m}\] is as earlier defined.**

** Q13 Let \[\bar X_{m}\] be the Median Score, Determine \[\bar X_{m}\] in 15, 13, 15, 12, 12, 16, 15, 14, 13**

** Q14 Suppose \X_{m} is the Mode. Find \X_{m} in 15, 13, 15, 12, 12, 16, 15, 14, 13.**

** Q15 Take X = 29, 27, 28, 30, 35. Evaluate \bar {X}**

** Q16 Suppose X = 10, 12, 8, 7, 5. Find the value of (\[\sum{i=1}^{5} X_{i}-2)^2\]**

** Q17 If X=10, 12, 8, 7, 5. Evaluate {1} \{3} \[\sum{i=1}^{5} X_{i}\]**

** Q18 Determine [ \sum{i=1}^{5} X_{i}]^2 if X = 10, 12, 8, 7, 5**

** Q19 Let Y = 2, 5, 6, 7. Find \sum{j=1}^{4} Y_{j}**

** Q20 If X=10, 12, 8, 7, 5 Determine \sum{i=1}^{5} X_{i}**

** Q21 Given that X = 20, 30, 40, 50, 60. Find \[\bar X \].**

** Q22 Consider this distribution 12, 20, 13, 15, 17, 15, 18. Find \[\bar X_{m}\], where \[\bar X_{m}\] is as earlier defined.**

** Q23 Let \[\bar X_{m}\] be the Median Score, Determine \[\bar X_{m}\] in 15, 13, 15, 12, 12, 16, 15, 14, 13**

** Q24 Suppose \X_{m} is the Mode. Find \X_{m} in 15, 13, 15, 12, 12, 16, 15, 14, 13.**

** Q25 Take X = 29, 27, 28, 30, 35. Evaluate \bar {X}**

** Q26 Suppose X = 10, 12, 8, 7, 5. Find the value of (\[\sum{i=1}^{5} X_{i}-2)^2\]**

** Q27 If X=10, 12, 8, 7, 5. Evaluate {1} \{3} \[\sum{i=1}^{5} X_{i}\]**

** Q28 Determine [ \sum{i=1}^{5} X_{i}]^2 if X = 10, 12, 8, 7, 5**

** Q29 Let Y = 2, 5, 6, 7. Find \sum{j=1}^{4} Y_{j}**

** Q30 If X=10, 12, 8, 7, 5 Determine \sum{i=1}^{5} X_{i}**

** Q31 The scores obtained by 10 students in a practical class are as follows: 20, 50, 30, 40, 60. The mean score is _________**

** Q32 In the distribution having classes 0-4 5-9 10-14 15-19 20-24 . . . The upper class boundary for class 3 is _____________**

** Q33 Mean, Median and Mode are measures of _______________________**

** Q34 In attitude test, the scores for 5 newly students are as stated here, Attitude: 5, 4, 3, 2, 1. The percentage attributable to attitude of score 3 is**

** Q35 .Cluster Sampling is one whose members are ___________________________**

** Q36 Systematic Sampling is a completely random sampling method**

** Q37 Simple Random Sampling (SRS) is one for which each possible sample is _______ likely to be selected**

** Q38 The sample characteristics is _________________**

** Q39 _________ is a population characteristics**

** Q40 Statistics is the _____________ that deals with data collection, and summarising facts which are expressible in numerical form**

______________

o 0.848

o _0.671

o _0.905

o 1.283

b. 65.93

c. 71.25

d. 61.35

Five individuals from an animal population thought to be near extinction in the north_east region of the country have been caught, tagged, and released to mix into the population, after which a random sample of 10 of the animal is reselected. Let M be the number of tagged animals in the second sample. If there are 25 animals of this type in the region. What is the probability that M<=2

0.545

0.699

0.451

0.711