Answer:
The 65th percentile is between 73 and 74
Step-by-step explanation:
Rearrange the ungrouped data in ascending order: 65,66,67,68,71,73,74,77,77,77
The 65th percentile is 65/100 of N ( N = 10) = 65/100 × 10 = 6.5
The 65th percentile is the 6.5th term. The 6th term is 73 and the 7th term is 74, the 6.5th term is between the 6th and 7th term
The 65th percentile is between 73 and 74
Answer:The 65th percentile is 74
Step-by-step explanation:
The total number of scores sampled is 10. So n = 10
We want to determine the 65th percentile. First step is to rearrange the scores in an increasing order. It becomes
65, 66, 67, 68, 71, 73, 74, 77, 77, 77
Next step is to determine the index by multiplying 65% by n. It becomes
65/100×10 = 6.5. Rounding up to the nearest whole number, it becomes 7
The 65th percentile will be the 7th term from the left. It becomes
74
