SSAT Middle Level Math : Data Analysis

Study concepts, example questions & explanations for SSAT Middle Level Math

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Example Questions

Example Question #171 : Data Analysis

Complete the table below using the equation \(\displaystyle y=7x+3\)

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Possible Answers:

\(\displaystyle 45\)

\(\displaystyle 49\)

\(\displaystyle 47\)

\(\displaystyle 46\)

\(\displaystyle 48\)

Correct answer:

\(\displaystyle 45\)

Explanation:

In order to solve this question, we need to use both the equation and the table. We are looking for the corresponding \(\displaystyle y\) value for \(\displaystyle x=6\). We can plug \(\displaystyle 6\) into the \(\displaystyle x\)  in our equation to solve for \(\displaystyle y\).

\(\displaystyle y=7(6)+3\)

\(\displaystyle y=42+3\)

\(\displaystyle y=45\)

Example Question #22 : Sets

\(\displaystyle \left \{ 2,4,6,8,10,x,14,y,18,20\right \}\) What are the two missing values in the following set?

Possible Answers:

\(\displaystyle 10, 16\)

\(\displaystyle 12, 16\)

\(\displaystyle 12, 14\)

\(\displaystyle 11,15\)

\(\displaystyle 22, 24\)

Correct answer:

\(\displaystyle 12, 16\)

Explanation:

The pattern for the set is all even numbers up until \(\displaystyle 20\).  The missing even number between \(\displaystyle 10\) and \(\displaystyle 14\) would be \(\displaystyle 12\) and the missing number between \(\displaystyle 14\) and \(\displaystyle 18\) would be \(\displaystyle 16\).

Example Question #22 : How To Find The Missing Part Of A List

What number replaces the circle in the sequence below?

\(\displaystyle 8, 31, 52, 71, 88, \bigcirc, 116,...\)

Possible Answers:

\(\displaystyle 105\)

\(\displaystyle 107\)

\(\displaystyle 101\)

\(\displaystyle 103\)

Correct answer:

\(\displaystyle 103\)

Explanation:

Add 23 to the first element to get the second element. The increment decreases by two with each successive entry. The pattern can be seen below:

\(\displaystyle 8 \bold {+23} = 31\)

\(\displaystyle 31 \bold {+21} = 52\)

\(\displaystyle 52 \mathbf{+ 19} = 71\)

\(\displaystyle 71 \mathbf{+ 17} = 88\)

To get the element in the circle, add 15:

\(\displaystyle 88\mathbf{ + 15}= 103\), the correct response.

This is confirmed by adding 13;

\(\displaystyle 103 \mathbf{+ 1 3 } = 116\), the next number in the sequence.

Example Question #172 : Data Analysis

Assorted 2

Refer to the above diagram. The top row gives a sequence of figures. Which figure on the bottom row comes next?

Possible Answers:

Figure (d)

Figure (c)

Figure (a)

Figure (b) 

Correct answer:

Figure (b) 

Explanation:

The figures alternate between lines with squares and lines with circles, so the next figure must be a line with a square. This eliminates Figures (c) and (d) and leaves Figures (a) and (b).

If we only look at every other figure - the ones with the squares - we note that each figure is the previous one rotated one quarter turn clockwise. The next figure in the sequence is therefore the figure resulting from a one-quarter turn of the fifth figure - this is Figure (b).

Example Question #31 : How To Find The Missing Part Of A List

What number replaces the square in the sequence below?

\(\displaystyle 2, 8, 7, 28, 27, 108, 107, \bigcirc, \square, ...\)

Possible Answers:

\(\displaystyle 427\)

\(\displaystyle 105\)

\(\displaystyle 424\)

\(\displaystyle 1712\)

Correct answer:

\(\displaystyle 427\)

Explanation:

The way to get from one entry of the sequence to the next alternates between multiplying by four and subtracting one, as follows:

\(\displaystyle 2 \mathbf{ \times 4} = 8\)

\(\displaystyle 8 \mathbf{ -1} = 7\)

\(\displaystyle 7 \mathbf{ \times 4} = 28\)

\(\displaystyle 28 \mathbf{ -1} = 27\)

\(\displaystyle 27 \mathbf{ \times 4} = 108\)

\(\displaystyle 108\mathbf{ -1} = 107\)

Continuing the pattern:

\(\displaystyle 107 \mathbf{ \times 4} = 428\)

\(\displaystyle 428\mathbf{ -1} = 427\), the correct choice.

Example Question #173 : Data Analysis

Assorted 1

On the top row in the above diagram is a sequence of figures. Which of the figures in the bottom row is the next one in the sequence?

Possible Answers:

Figure (c)

Figure (b)

Figure (a)

Figure (d)

Correct answer:

Figure (c)

Explanation:

Each figure is obtained by rotating the previous figure one-eighth of a turn clockwise, with the position of the letter and the number also so changed. Also, the number increases by two, and the letter, which is always in the opposite corner, is the letter corresponding to the number (A = 1, C = 3, etc...).

The next number in the pattern is 13; the thirteenth letter in the alphabet is "M"; and, to continue the pattern of rotating one-eighth of a turn clockwise each time, the "M" must be at the very bottom, with the "13" being at the top. This means that Figure 3 is the next figure in the sequence.

Example Question #174 : Data Analysis

Pie_graph

 

Four candidates ran for mayor of Jackson City; the above circle graph shows the share of the vote that each won.

According to a city ordinance, a candidate must win more than 50% of the vote to win the election; if this does not happen, the two candidates who win the most votes will face each other in a runoff election. Based on the above graph, which of the following is the outcome of the vote?

Possible Answers:

Mills and King will face each other in a runoff.

Mills and Jones will face each other in a runoff.

Mills won the election outright.

Jones and King will face each other in a runoff.

Jones won the election outright.

Correct answer:

Mills and Jones will face each other in a runoff.

Explanation:

By comparing the sizes of the sectors, it can be seen that Mills won the largest share of the vote - but not at least one half of it - and Jones won the second-largest share. Therefore, they will face each other in a runoff.

Example Question #2 : How To Find The Answer From A Table

Four candidates ran for mayor of Johnston City. The results are below.

\(\displaystyle \begin{matrix} \textrm{\underline{Candidate}} & \textrm{\underline{Votes}} \\ \textrm{Allen } & 4,128 \\ \textrm{Carter } & 2,177 \\ \textrm{Johnson } & 5,813 \\ \textrm{Wayne } & 1,578 \end{matrix}\)

Which of the following is the best estimate of the percent of the vote won by Johnson?

Possible Answers:

\(\displaystyle 50\) %

\(\displaystyle 30\) %

\(\displaystyle 20\) %

\(\displaystyle 10\) %

\(\displaystyle 40\) %

Correct answer:

\(\displaystyle 40\) %

Explanation:

Since we are asking for an estimate, one way to work this problem is to round each candidate's vote tally to the nearest thousand, then adding the rounded numbers:

\(\displaystyle 4,178 + 2,177 + 5,813 + 1,578\)

\(\displaystyle \approx 4,000 + 2,000 + 6,000 + 2,000 = 14,000\)

Johnson's share of the vote is about 6,000 of those approximately 14,000 votes, or \(\displaystyle \frac{6,000}{14,000} = \frac{6}{14} = \frac{3}{7}\)

As a percent, \(\displaystyle \frac{3}{7}\) is equal to:

\(\displaystyle \frac{3}{7} \cdot 100 = \frac{300}{7}\)

\(\displaystyle 300 \div 7 \approx 43\)

Therefore, 40% is the best estimate of the choices we are given.

Example Question #3 : How To Find The Answer From A Table

Pie_graph

Five candidates ran for mayor of Madison City; the above circle graph shows the share of the vote that each won. Which of the following would be the most reasonable estimate of the percent of the vote Lyle won?

Possible Answers:

\(\displaystyle 5\) %

\(\displaystyle 10\) %

\(\displaystyle 20\) %

\(\displaystyle 30\) %

\(\displaystyle 40\) %

Correct answer:

\(\displaystyle 10\) %

Explanation:

The sector representing Lyle is roughly one-tenth to one-eighth of the circle - in other words, 10-12 % of it. This is the approximate percent of the vote won by Lyle.

Example Question #4 : How To Find The Answer From A Table

Four candidates ran for mayor of Johnston City. The results are below.

\(\displaystyle \begin{matrix} \textrm{\underline{Candidate}} & \textrm{\underline{Votes}} \\ \textrm{Allen } & 4,128 \\ \textrm{Carter } & 2,177 \\ \textrm{Johnson } & 5,813 \\ \textrm{Wayne } & 1,578 \end{matrix}\)

According to a city ordinance, a candidate must win more than 50% of the vote to win the election; if this does not happen, the two candidates who win the most votes will face each other in a runoff election. Based on the above table, which of the following is the outcome of the vote?

Possible Answers:

A runoff will be held between Allen and Carter.

A runoff will be held between Johnson and Allen.

A runoff will be held between Johnson and Carter.

Allen won outright.

Johnson won outright.

Correct answer:

A runoff will be held between Johnson and Allen.

Explanation:

We can determine whether the highest vote-getter, Johnson, won the election outright by comparing Johnson's votes to the sum of the votes of his opponents. The votes won by his opponents sum up to:

\(\displaystyle 4,128 + 2,177 + 1,578 = 7,883\)

Johnson won 5,813 votes. Since \(\displaystyle 5,813 < 7,883\),  he did not win a majority, and he will face the second highest vote-getter, Allen, in a runoff.

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