EasySample meanstatistics-inference-1
Chapter 11 practice bank
100 questions:
Statistics
Solve on paper first. Reveal only the final answer when you want to check yourself. There are no worked solutions in this bank by design.
34 easy 33 medium 33 advanced
EasyMedianstatistics-inference-2
Find the median of the ordered data 1, 3, 4, 8, 12.
EasyRangestatistics-inference-3
A dataset has minimum 4 and maximum 15. Find its range.
EasySample proportionstatistics-inference-4
15 of 50 surveyed users choose option A. Find p̂.
EasySample variancestatistics-inference-5
Find the unbiased sample variance of 1, 3, 5.
EasyResidualsstatistics-inference-6
A regression predicts 8, while the observed value is 6. Find observed-minus-predicted residual.
EasyEstimator biasstatistics-inference-7
A target parameter is 10 and E[θ̂]=9. Find Bias(θ̂).
EasyInterquartile rangestatistics-inference-8
A sample has Q₁=5 and Q₃=13. Find its IQR.
EasySample meanstatistics-inference-9
Find the mean of 3, 5, 7, 9.
EasyMedianstatistics-inference-10