You have to make the denominator the same: 40
35/40 + 32/40 = 67/40
B and D, they lie in the shaded area
The answer is 2.52
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Answer:
One mole of oxygen gas contains 6.02 × 10 to the power of 23 molecules of oxygen
Step-by-step explanation:
Answer:
Group A.
Step-by-step explanation:
As shown by the dot plots, Group A has one 9-year-old painter, seven 10-year-old painters, and 24 painters between the ages of 15 and 20. Group B has seventeen painters between the ages of 10 and 20 and thirteen painters between the ages of 25 and 30. Since mean is the average of everything, Group A most likely has a lower mean age of painting students than Group B does.