NH SAS Grade 7 Statistics and Probability Practice

Statistics and Probability skills

Use random sampling to draw inferences about a population

Draw informal comparative inferences about two populations

Investigate chance processes and develop, use, and evaluate probability models

Understand and compare probabilities of simple events

Standards basis

Common Core State Standards for Mathematics (CCSS-M) / New Hampshire mathematics standards — New Hampshire

How the NH SAS reports it

New Hampshire SAS is the state assessment system, but the official math reporting structure was not accessible from the state page in this session. In practice, New Hampshire’s math assessments are aligned to the state’s K-12 mathematics standards, which closely mirror Common Core grade-level domains and clusters.

Blueprint & weighting

Not published in the accessible source set used here.

Official sources

New Hampshire Department of Education – Assessments
Common Core State Standards for Mathematics
CCSS-M Grade 3 (Oregon ODE reprint)

8 free questions · 0/0 correct

Practice playeasy

A bowl contains $4$ lemons and $9$ limes. One piece of fruit is chosen at random. What is the probability that the fruit is a lime?

There are $4 + 9 = 13$ pieces of fruit and $9$ are limes, so $P(\text{lime}) = \dfrac{9}{13}$ .

Practice playeasy

A number cube is rolled once. What is the probability of rolling an even number?

Three of the six faces ( $2, 4, 6$ ) are even, so $P = \dfrac{3}{6} = \dfrac{1}{2}$ .

Practice playeasy

The whole numbers $1$ through $24$ were each written on separate cards. Those $24$ cards were placed in a hat. One card will be randomly drawn from this hat. What is the probability that the card will show a number greater than $15$ ?

Numbers greater than $15$ from $1$ to $24$ are $16, 17, 18, 19, 20, 21, 22, 23, 24$ , giving $9$ favorable outcomes: $P = \tfrac{9}{24} = \tfrac{3}{8}$ .

Practice playeasy

What is the probability of the spinner landing on a shaded section (5 of 8)? Give a simplified fraction.

$P = \dfrac{\text{favorable}}{\text{total}} = \dfrac{5}{8} = \dfrac{5}{8}$ .

Practice playeasy

For two independent events, the probability of flipping two heads in a row: $P(A)=\tfrac{1}{2}$ , $P(B)=\tfrac{1}{2}$ . Find $P(A \text{ and } B)$ as a simplified fraction.

Multiply: $P(A \text{ and } B) = \tfrac{1}{2} \times \tfrac{1}{2} = \tfrac{1}{4}$ .

Practice playmedium

A standard six-sided number cube is rolled twice. What is the probability of rolling a $4$ on the first roll and an even number on the second roll?

$P(4\text{ on first roll}) = \dfrac{1}{6}$ and $P(\text{even on second roll}) = \dfrac{3}{6} = \dfrac{1}{2}$ . So $P(\text{both}) = \dfrac{1}{6} \times \dfrac{1}{2} = \dfrac{1}{12}$ .

Practice playeasy

In a random sample of 30, 9 were left-handed students. Estimate how many of 300 are left-handed in the whole population.

Proportion $= \dfrac{9}{30}$ . Estimate $= \dfrac{9}{30} \times 300 = 90$ .

Practice playeasy

A standard six-sided number cube is rolled once. What is the probability of rolling an odd number?

The odd faces are $1$ , $3$ , and $5$ , so $P(\text{odd}) = \dfrac{3}{6} = \dfrac{1}{2}$ .

NH SAS Grade 7 Statistics and Probability. Practice it free.

Statistics and Probability skills

Use random sampling to draw inferences about a population

Draw informal comparative inferences about two populations

Investigate chance processes and develop, use, and evaluate probability models

Understand and compare probabilities of simple events

Topics mapped to this domain

One-event probability word problems

Probability basics

Probability from number sets

Probability of simple events

Compound probability

Two-event compound probability word problems

Sampling and inference

8 free questions · 0/0 correct

Turn statistics and probability into game time.

More Grade 7 domains