2. Use the frequency table you created for Question 1 to answer the following: a

Question

2. Use the frequency table you created for Question 1 to answer the following:

a. What fraction (or percentage) of students reported having 5 dreams per week?

b. What fraction (or percentage) of students reported having 5 or 8 dreams per week?

c. What is the relative frequency of students having less than 7 dreams per week?

d. What is the cumulative relative frequency of students having 7 or more dreams per week?

Construct a histogram from the frequency table you created in Question 1. Use five (Sturges Rule) or six (Rice Rule) intervals. Be sure to scale the axes. You may draw the histogram, use a TI-8x series calculator (upload an image of its window), or use histogram software (including Excel 2013).

Dreams per week Frequency    Relative Frequency Cummulative Relative Frequency 0 1 1 / 30 = 0.03333 0.03333 1 1 1 / 30 = 0.03333 0.03333 + 0.03333 = 0.06666 2 1 1 / 30 = 0.03333 0.06666 + 0.03333 = 0.1 3 2 2 / 30 = 0.06666 0.1 + 0.06666 = 0.16666 4 1 1 / 30 = 0.03333 0.16666 + 0.03333 = 0.2 5 2 2 / 30 = 0.06666 0.2 + 0.06666 = 0.26666 6 4 4 / 30 = 0.13333 0.4 7 7 7 / 30 = 0.23333 0.63333 8 5 5 / 30 = 0.16666 0.8 9 3 3 / 30 = 0.1 0.8 + 0.1 = 0.9 10 3 3 / 30 = 0.1 0.9 + 0.1 = 1 Total 30 1

Explanation / Answer

a. 6.666 % ( relative freq*100)

b. (.06666+.16666)*100=23.332%

c 0.4*100=40 %. less than type cumulative frequency has been considered. which is equivalent to addinf all p frequencies corresponding to below 7 dreams.

d. (7+5+3+3)/30=18/30=0.6

here we answer only first four parts

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