A. 170 students out of the 230 students love both biking and skating (to make it easier, the percentage is about 0.74).
I am sorry if I cannot solve the other half of your question
1+3+3+4+6+9+9 is 35
7 numbers so divide by 7
35/7 = 5
Mean is 5
The answer to this question is:0.1428571429.
Hope this helps! (:
Answer:
y = 3(x+7/6)² - 25/12
Step-by-step explanation:
The range is 327 the maxim subtract the minimum