Mathematics, 28.11.2019 18:31 desscraft30
At an elementary school sporting event, students participated in a 400-meter race. the race times for 20 students in each grade were recorded and presented the following box plot.
based on these samples, what generalization can be made?
a.
the first quartile of the race times for 4th grade students is less than the first quartile of the race times for 3rd grade students.
b.
the interquartile range of the race times for 4th grade students is less than the interquartile range of the race times for 3rd grade students.
c.
the median race time for 4th grade students is less than that for 3rd grade students.
d.
the range of race time is larger for 4th grade students than for 3rd grade students.
Answers: 2
Mathematics, 21.06.2019 18:00
Ihave trouble finding the nth term of a linear sequence
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Mathematics, 21.06.2019 19:00
What are the solutions of the equation? 16x^2 + 24x + 5 = 5 a. 1/4, 5/4 b. -1/4, -5/4 c. -1/4, 5/4 d. 1/4 , -5/4
Answers: 1
Mathematics, 21.06.2019 20:20
Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?
Answers: 1
At an elementary school sporting event, students participated in a 400-meter race. the race times fo...
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