The scatter plot shown gives the relationship between concentration and absorbance of a particular chemical, along with the line
of best fit. What absorbance level is predicted when the concentration is 0.2?
A) 0.21
B) 0.24
C) 0.27
D) 0.30
A) 0.21
B) 0.24
C) 0.27
D) 0.30
1 answer:
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Answer:
0.4394
Step-by-step explanation:
given that an auto parts store is examining how many items were purchased per transaction at the store as compared to their online website
The data is shown below:
Frequency Frequency*Midpt
Midpt Online Total Online Total
1-3 2 40 147 80 294
4-6 5 60 103 300 515
7-9 8 15 32 120 256
10-12 11 5 18 55 198
120 300 555 1263
Thus we find total items purchased on line = 555
and total items overall purchased = 1263
Hence the probability that a randomly selected item was purchased online
=