| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.71 |
| Score | 0% | 74% |
Find the average of the following numbers: 13, 5, 10, 8.
| 10 | |
| 7 | |
| 9 | |
| 5 |
To find the average of these 4 numbers add them together then divide by 4:
\( \frac{13 + 5 + 10 + 8}{4} \) = \( \frac{36}{4} \) = 9
If there were a total of 50 raffle tickets sold and you bought 1 tickets, what's the probability that you'll win the raffle?
| 4% | |
| 5% | |
| 2% | |
| 13% |
You have 1 out of the total of 50 raffle tickets sold so you have a (\( \frac{1}{50} \)) x 100 = \( \frac{1 \times 100}{50} \) = \( \frac{100}{50} \) = 2% chance to win the raffle.
What is the next number in this sequence: 1, 3, 5, 7, 9, __________ ?
| 19 | |
| 11 | |
| 5 | |
| 10 |
The equation for this sequence is:
an = an-1 + 2
where n is the term's order in the sequence, an is the value of the term, and an-1 is the value of the term before an. This makes the next number:
a6 = a5 + 2
a6 = 9 + 2
a6 = 11
What is the next number in this sequence: 1, 3, 7, 13, 21, __________ ?
| 38 | |
| 31 | |
| 23 | |
| 32 |
The equation for this sequence is:
an = an-1 + 2(n - 1)
where n is the term's order in the sequence, an is the value of the term, and an-1 is the value of the term before an. This makes the next number:
a6 = a5 + 2(6 - 1)
a6 = 21 + 2(5)
a6 = 31
Find the average of the following numbers: 13, 5, 10, 8.
| 10 | |
| 7 | |
| 9 | |
| 5 |
To find the average of these 4 numbers add them together then divide by 4:
\( \frac{13 + 5 + 10 + 8}{4} \) = \( \frac{36}{4} \) = 9