X= 4
Because I need to answer a question in order to answer other questions so your welcome.
<span>2r2 + 3s3 − r2 + 4t2 − r2
</span>
= 19
Answer:
398.411
Step-by-step explanation:
Explanation has been given in the following attachments.
Answer:
Step-by-step explanation:
5,9,11,(13,16),16,19,21
the mean(middle number) = (13 + 16) / 2 = 29/2 = 14.5
Q1 = (9 + 11) / 2 = 20/2 = 10
Q3 = (16 + 19) / 2 = 35/2 = 17.5
interquartile range (IQR) = Q3 - Q1 = 17.5 - 10 = 7.5 <==