## Are you ready to take your first step toward achieving your goal?

- 10 diagnosis quiz questions
- 10 minutes in duration
- Required to attempt all questions
- A mixture of short answer and multiple-choice questions
- Instant feedback straight after the test

## OK, let’s get started now!

## Are you ready to take your first step toward achieving your goal?

- Ten diagnosis quiz questions
- Ten minutes in duration
- Required to attempt all questions
- A mixture of short-answer and multiple-choice questions
- Instant feedback straight after the quiz

## OK, let’s get started now!

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- Question 1 of 10
##### 1. Question

State the following data as categorical or numerical.

*the average temperature of a city in each month*CorrectIncorrect - Question 2 of 10
##### 2. Question

A score was added to the set of scores: \( 13, 18, 20, 20, 22 \) and \( 26 \). The new mean is equal to \( 19\). What score was added?

The score added was .

CorrectIncorrect - Question 3 of 10
##### 3. Question

Estimate the mean of the data.

\( \begin{array}{|c|c|c|c|c|c|} \hline

Class & 150 \le x < 200 & 200 \le x < 250 & 250 \le x < 300 & 300 \le x < 350 & 350 \le x < 400 \\ \hline Frequency (f) & 18 & 21 & 24 & 29 & 27 \\ \hline \end{array} \)Sum of scores \( = \) \( \times 18 + \) \( \times 21 + \) \( \times 24 + \) \( \times 29 + \) \( \times 27 = \)

Sum of frequencies \( = \) \( + \) \( + \) \( + \) \( + \) \( = \)

Mean \( = \) \( \div \) \( = \) , correcting to one decimal place

CorrectIncorrect - Question 4 of 10
##### 4. Question

Select the corresponding frequency table for the cumulative frequency graph shown.

CorrectIncorrect - Question 5 of 10
##### 5. Question

Find the interquartile range of the data represented in the box-and-whisker plot.

\( \begin{array}{c|cccccc}

1 & 0 & 1 &&&& \\

2 & 1 & 2 & 6 &&& \\

3 & 2 & 4 & 7 & 7 && \\

4 & 3 &&&&& \\

\end{array} \)List the scores in ascending order.

The upper quartile is .

The lower quartile is .

The interquartile range is .

CorrectIncorrect##### Hint

Interquartile Range = Upper Quartile – Lower Quartile

- Question 6 of 10
##### 6. Question

The table shows Amy’s results for two tests. Which test is the better result for Amy compared to her class?

\( \begin{array}{|c|c|c|c|} \hline

\text{test} & \text{Amy’s result} & \text{class mean} & \text{class standard deviation} \\ \hline

A & 82 & 75 & 7 \\ \hline

B & 86 & 77 & 10 \\ \hline

\end{array} \)\(A\) or \(B\)

CorrectIncorrect - Question 7 of 10
##### 7. Question

Find the population standard deviation of the following data set, correcting to two decimal places using technology.

\(\begin{array} {|c|c|c|c|c|} \hline

score &10 \le x < 20 &20 \le x < 30 &30 \le x < 40 &40 \le x < 50 \\ \hline frequency &34 &37 &44 &21 \\ \hline \end {array} \)CorrectIncorrect - Question 8 of 10
##### 8. Question

7 cards numbered 2, 3, 4, 5, 6, 7, and 8 are placed in a hat. Two are taken simultaneously. Find the probability that both are odd. Answer to two decimal places.

CorrectIncorrect - Question 9 of 10
##### 9. Question

Given \(P\left( A \right) = \dfrac{1}{2}\) and \(P\left( B \right) = \dfrac{1}{3}\), find \(P\left( {A\text{ or }B} \right)\), correcting to one decimal place.

CorrectIncorrect - Question 10 of 10
##### 10. Question

Factory

*Ace*produces tyres with a probability of 0.05 that a randomly selected tyre is faulty, while Factory*Bro*is 0.03. A retailer*Charles*buys 70 types from*Ace*and 30 from*Bro*. A customer purchases one of these tyres from*Charles*. Find the probability that this tyre is not faulty.

CorrectIncorrect