Download 2ndStat-key Past Papers

‫‪University of Jordan‬‬
‫‪Faculty of Pharmacy‬‬
‫( ‪Exam Form‬‬
‫)‬
‫ينص نظام تأديب الطلبة النافذ على ما يلي‪:‬‬
‫* إذا ثبت نتيجة التحقيق أن الطالب حاول الغش أو اشترك أو شرع فيه أثناء تأدية االمتحان أو‬
‫االختبار في إحدى المواد ُتوَقع عليه العقوبات التالية مجتمعة‪:‬‬
‫‪ -1‬اعتباره راسباً في تلك المادة‪.‬‬
‫‪ -2‬إلغاء تسجيله في بقية المواد المسجلة له في ذلك الفصل ‪.‬‬
‫‪ -3‬فصله من الجامعة لمدة فصل دراسي واحد يلي الفصل الذي ضبط فيه‪.‬‬
‫وهذا يعني أن سنة دراسية كاملة ستضيع على الطالب لمجرد محاولة الغش‪.‬‬
‫‪Name:‬‬
‫‪Student number:‬‬
‫‪Time: 50‬‬
‫‪Be sure that you have 39 different multiple questions:‬‬
‫‪Question 1-30 should be answered on the computer answer sheet‬‬
‫‪Question 31-39 should be answered on the provided space‬‬
‫‪Good luck‬‬
‫‪1‬‬
The following table represents data on the weights of 100 clarithromycin tablets:
1. The interval width is:
a) 2
b) 3
c) 4
d) 5
e) None of the above
Interval
290-294
295-299
300-304
Frequency
9
12
42
305-309
16
310-314
315-319
13
8
Blue
12%
Answer the following two questions (2-3) according
the adjacent chart
2. The adjacent pie chart represents the eye color of 500
pharmacy students
From the chart, the number of students who has blue
eyes
a) 12
b) 14
c) 60
d) 70
e) Can't be determined
Green
14%
Black
40%
Brown
34%
3. The best description of these data is
a) Discrete data
b) Continues
c) Ordinal
d) Quantitative
4. Which of the following couldn't be metric data
a) The assay content of capsules
b) Blood cholesterol
c) Classifying the patients according to the type of antihypertensive drug used
d) Pharmacy students marks in the biostatistics course
e) More than one of the above.
The adjacent table shows the frequency distribution of table of diastolic pressure values for their for 60
patients answer Q (5-7)
diastolic
5. The cumulative frequency for the value 62
pressure
a) 6
45
1
b) 10
c) 13
52
4
d) 19
60
4
e) None of the above
f
61
62
63
69
70
75
6. The relative frequency for the value 60
a) 4
b) 1
c) 4%
d) 6.7 %
e) 15%
2
4
6
6
7
13
15
7. According to Sturge’s rule, how many intervals can we divide these data point.
a) 7
b) 6.9
c) 6
d) 3.32
e) Insufficient information
The level of serum potassium (in μg/mL) for seven patients is as follows:
5.1 2.7 2.8
2.5 3.6 4.2
2.9
Answer the following five questions (8-12)
8. What is the arithmetic mean value of potassium level in the studied sample?
a) 2.5
b) 3.3
c) 3.4
d) 3.2
e) None of the above
9. What is the median potassium level in these patients?
a) 2.5
b) 2.9
c) 3.1
d) The data set does not have a median
10. What is the interquartile range of potassium level data?
a) -1.5
b) 1.5
c) 2.7
d) 4.2
11. If the coefficient of variation of these data is 0.28 then the standard deviation is:
a) 0.96
b) 0.28
c) 28
d) 1
e) No enough information is provided.
12. What is the unit of the coefficient of variation?
a) It is a dimensionless value
b) The same unit of the mean
c) The same uint of standard deviation
d) μg/mL
e) L/g
13. All of the followings are parameters of central tendency measurement except?
a) First quartile
b) Second quartile
c) Third quartile
d) Interquartile range
e) Coefficient of variation
The following are the maximum plasma concentration (µg/ml) after taking a certain drug in five volunteers.
5, 10, 20, 30
14. Find out the geometric mean of these data is
a) 10.40
b) 13.16
c) 16.25
d) 4.48
e) 1.12
3
(Q15-Q16) The following table shows the effect of certain drug on weight reduction (kg) in 50 healthy
volunteers
Wt reduction (Kg)
0.5
1.0
2.0
3.0
4.5
Frequency
11
9
5
10
15
15. Calculate the arithmetic mean of weight reduction for the all volunteers.
a) 2.44
b) 2.2
c) 10.0
d) 4.55
e) Cant be calculated
16. Median value
a) 2
b) 2.5
c) 3
d) 25.5
e) None of the above.
17. Mode value
a) 15
b) 11
c) 10
d) 4.5
e) 3
A sample consisting of 5 data points, if you know that the sum of these points is 38 and sum of their squares is
306. Answer the following three questions (18-20)
18. What is variance of these points for
a) 76.5
b) 9.5
c) 7.6
d) 4.3
e) Insufficient information
19. What is standard deviation these data points:
a) 2.07
b) 2.76
c) 3.1
d) 8.7
e) Insufficient information
20. What is the mean of these points
a) 2.07
b) 76.5
c) 9.5
d) 8.7
e) Insufficient information
4
Answer the following three questions regarding the graph below (Q21-23)
21. One of the following statements is False
a) This graph is called Box and Whisker plot
b) It gives the five-number summary of the data.
c) Provides information about both central and dispersion properties of the data
d) The range, the interquartile range and the mean can be estimated from this graph
22. The value of the 75 percentile is
a) 7
b) 14.5
c) 20.5
d) 26
e) 29
23. The median value is
a) 7
b) 14.5
c) 20.5
d) 26
e) 29
24. If the probability of right handedness in a certain group of people is 0.90, what is the probability of left
handedness (assuming no one can use the two hands)?
a. 0.05
b. 0.95
c. 0.10
d. 0.90
e. Not enough information is provided
25. Which is the following is not correct
a. Two events are said to be mutually exclusive if they can occur simultaneously
b. The probability values 0 ≤ P ≤ 1
c. There is no negative probability
d. The sum of probabilities of the mutually exclusive outcomes is equal to 1
5
In a study of the influence of duration of aspirin (ASP) intake on the number of heart attacks on
a sample of 161 patient with heart diseases. Use the data presented in the following table to
answer questions 27-30.
Number of heart attacks
Duration of ASP (Years)
0-1
Total
≥2
53
22
75
1-3
23
9
32
4-8
27
10
37
9-10
12
5
17
≥11
115
46
161
Total
26. Suppose that we pick a patient at random from this group, what is the probability this patient will be
with two or more heart attacks?
a. 0.2857
b. 0.2933
c. 0.0559
d. 0.7143
27. If we pick one at random, what is the probability that he would be with two or more heart attacks
and have 4 to 8 years of ASP use?
a. 0.2857
b. 0.2933
c. 0.0559
d. 0.7143
28. What do we call the probability calculated in the previous question?
a. Marginal
b. Joint
c. Conditional
d. Normal
29. If we pick one at random and was found that he has two or more heart attacks, what is the probability
that he has duration of use more than 11 years.
a. 0.0311
b. 0.1087
c. 0.2941
d. 0.7143
30. What do we call the probability calculated in the previous question?
a. Marginal
b. Joint
c. Conditional
d. Normal
Quiz (10 points): answer the following questions on the provided space
31. The distribution describing the probability of occurrence of events within some unit of space or time is
called:
32. For a binomial distribution of the results of a 20 Bernoulli trials with a mean of 16 successes, find out
the failure probability rate?
6
Using the binomial tables answer the following questions (write down the number in 4 digits on)
Suppose that 45% of a population is infected with H1N1 virus. If a random sample of size 8 was
selected.
33. What is the probability that it will contain exactly 4 infected persons?
34. What is the probability that it will contain at least 5 infected persons?
35. What is the probability that it will contain less than 6 infected persons?
36. What is the probability that it will contain between 3 & 7 immune persons, Exclusive?
37. Suppose that the infection rate with H1N1 was increased to be 70 % of that population. If a random
sample of size 8 was selected. What is the probability that it will contain less than 6 infected persons?
20 male and 30 female students are in one class . It was discovered that 40% of the males and 20% of
the females were infected with H1V1.
38. If we pick one randomly from this class, what is the probability that the selected one will be a male
or H1V1 infected
39. Use the back-to back stem plot to show the difference between the Cmax values of two formulation (formulation
A and Formulation B)
Formulation A:
250 250 250 251 251 252 252 253 253 254 256 257 258 261 262
Formulation B:
250 250 251 256 256 257 257 258 258 258 259 259 259 261 262
Good Luck
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