please answer ALL the question 1- Indicate the class boundaries for a class limi
ID: 3067941 • Letter: P
Question
please answer ALL the question
1- Indicate the class boundaries for a class limit of:
a. 1 to 5 (compute to the first decimal) ........ to ........
b. 70.5 to 80.5............ to ..........
c. 6.75 to 7.25 (compute to the first decimal) ..........to ..........
2-The number of laboratory tests carried out on 48 patients during their hospital stay (discharged last week) included:
17 2 15 22 31 11 18 5 7 17 3 16 1 12 9 4 6 44 7 18 4 10 14
12 8 13 3 3 8 11 25 29 9 21 36 2 5 6 17 8 3 9 13 9 6 5 9 14
What was the average number of test performed on the 48 patients? (compute to the second decimal) ...........
3-A total of 320 patients were treated at a clinic in the past year for sexually transmitted infections (STIs). Excluding 32 cases that resulted from congenital transmission or sexual abuse, construct the limits for a frequency distribution of the remaining cases (288), if the oldest patient was 88 and the youngest 12 years of age........
4-Blood glucose levels were recorded for all males over the age of 40, admitted with a diagnosis of coronary artery disease (a total of 755 diagnosed cases). The lowest blood glucose level recorded was 58 and the highest, 442. Using a class interval size of 25, set the score limits for each interval..........
5-The age of all patients diagnosed with cancer during the past year (255 new cases) was recorded. The youngest patient was 3 years old and the oldest was 92. Determine the number of class intervals.........
Explanation / Answer
1,
the class boundaries for a class limit of:
a. 1 to 5 (compute to the first decimal) 0.5 to 5.5
b. 70.5 to 80.5 is 70.45 to 80.55
c. 6.75 to 7.25 (compute to the first decimal) 6.745 to 7.255
= 6.7 to 7.3
2.
Average = sum of terms / no. of terms
= 577 / 48
= 12.0208
= 12.02
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