ZIMSEC A-Level Statistics Revision & Mock Test

Free ZIMSEC A-Level Revision

ZIMSEC A-Level Statistics

Revise ten essential areas, take an original diagnostic mock test and receive your mark, corrections and weak-topic guidance immediately.

Core Statistics revision topics

1

Data collection and sampling

Populations, samples, bias and reliable survey design.

2

Data presentation

Tables, charts and interpretation of grouped data.

3

Measures of location

Mean, median, mode, quartiles and their appropriate use.

4

Measures of dispersion

Range, variance, standard deviation and comparison of spread.

5

Probability

Rules, conditional probability and independent events.

6

Discrete random variables

Expected value and variance of discrete variables.

7

Probability distributions

Binomial, Poisson and normal models.

8

Estimation

Sampling distributions, confidence intervals and precision.

9

Hypothesis testing

Null hypotheses, significance levels and conclusions.

10

Correlation, regression and time series

Relationships, prediction and change over time.

10-question Statistics diagnostic mock test

Choose one answer for every question, then mark your test.

1. Which sampling method gives every member a known equal chance?

2. The median is:

3. Standard deviation measures:

4. For independent events A and B, P(A and B) equals:

5. Expected value is:

6. A binomial model requires:

7. A 95% confidence interval describes:

8. The null hypothesis usually represents:

9. A correlation coefficient near -1 indicates:

10. A moving average helps reveal:

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