Question

Find the mean, median, mode and range of Jeremy's math scores.
Math scores: 68, 83, 79, 94, 78, 84.
1. Mean =
2. Median =
3. Mode =
4. Range
=

Answer 1

Answer:

1. Mean

$mean = \frac{(68 + 83 + 79 + 94 + 78 + 84)}{6} \\ = 81$

2. Median

$in \: ascending \: order \\ 68 \: \: 78 \: \: 79 \: \: 83 \: \: 84 \: \: 94 \\ median = ( \frac{n}{2} + 1) {}^{th} \\ = ( \frac{6}{2} + 1) {}^{th} \\ = 4 {}^{th } value \\ median = 83$

3. Mode

All the values are repeated once hence mode is none.

4. Range

$range = 94 - 78 \\ = 16$

Answer 2

Answer:

1. Mean = 81
2. Median = 81
3. Mode =
4. Range = 26

Step-by-step explanation:

Mean: the total of all the numbers, divided by the amount of numbers.

$\frac{68+83+79+94+78+84}{6}$ = $\frac{486}{6}$ = 81

Median: the middle value when numbers are in order.

68, 78, 79, 83, 84, 94 $\frac{79+83}{2}$ = 81

Mode: The value which is written the most.

There isn't one.

Range: the largest number minus the smallest number.

94 - 68 = 26