SQA Higher Applications of Mathematics Statistics and Probability overview quiz quiz

A box plot

A pie chart

A single bar

A line graph of one value

$16$

$66$

$33$

$8$

$Q_3 + \text{IQR}$

$Q_3 \times 1.5$

$Q_3 + 1.5 \times \text{IQR}$

$Q_3 + Q_1$

Random

Systematic

Stratified

Convenience

$0$ to $1$

$-100$ to $100$

Any real number

$-1$ to $1$

Weak positive

No relationship

Strong negative

Strong positive

The value of $y$ when $x = 0$

The correlation coefficient

The change in $y$ for each unit increase in $x$

The total of all $y$ values

interpolation

extrapolation

correlation

estimation error

one definitely causes the other

they move together but one need not cause the other

there is no relationship

the data must be wrong

The probability that $H_0$ is true

The probability of a result at least as extreme as observed, if $H_0$ is true

The significance level

The sample mean

reject $H_0$

accept $H_0$ as proven

do not reject $H_0$

increase the sample

A z-test

A correlation test

A t-test

A chi-squared test

narrower

unchanged

negative

wider

$P(A) + P(B)$

$P(A) \times P(B)$

$P(A) - P(B)$

$P(A) \div P(B)$

adding the branch probabilities along the path

subtracting the branch probabilities

multiplying the branch probabilities along the path

taking the largest branch probability

$\pounds 8$

$\pounds 0.25$

$\pounds 4$

$\pounds 2$