Question

Use julianna’s text message data to answer the questions.
Text messages sent:
Sun: 13 Mon: 0 tues: 4 wed: 4 thurs: 5 fri: 6 sat: 17
1. What was the mean number of text messages that julianna sent per day ?
A. 4
B.6
C.8
D.7
2. How many days in the week did julianna send more text messages than average ( mean) ?
A. 7
B. 3
C. 2
D. 4
3. What was the median number of text messages that she sent ?
A. 7
B. 4
C. 5
D. 13
4. What was the range of text messages sent by julianna ?
A. 14
B. 17
C. 7
D. 5

Answer 1

Answer:

1.D.7

2.C.2

3.C.5

4.B.17

Step-by-step explanation:

1. Mean= 13+0+4+4+5+6+17 / 7

= 49 / 7

= 7.

2. Avg. is 7. And 13 & 17 are the 2 days, which r greater than 7.

Hence the ans is 2.

3.Median is the middle most score. So we first have to arrange in increasing order.

0 , 4 , 4 , 5 , 6 , 13 , 17

Here 5 is the middlemost one.

4. R = H+ L

i.e. range = Highest + lowest

= 17 + 0

= 17.