Question

1. Find the proportion (thousandths) and percentage(tenths) without "%

   List_____________Frequency ------------------------------Proportion Percentage

   0 ---------------------------9__________________________ a. ProportionBLANK-1, Percentage without "%"BLANK-2,

   1 ---------------------------10__________________________b. ProportionBLANK-3,, PercentageBLANK-4,

   2 ___________________16__________________________ c. ProportionBLANK-5,, PercentageBLANK-6,

   3 ___________________30__________________________d. ProportionBLANK-7,, PercentageBLANK-8,

   4 ____________________6__________________________ e. ProportionBLANK-9, PercentageBLANK-10,

   • BLANK-1
   • BLANK-2
   • BLANK-3
   • BLANK-4
   • BLANK-5
   • BLANK-6
   • BLANK-7
   • BLANK-8
   • BLANK-9
   • BLANK-10
2. Question 16

   10 Points

   Determine which of the four levels of measurement​ (nominal, ordinal,​ interval, ratio) is most appropriate.

   Countries in the world.

   1. Ratio

   2. Nominal

   3. Interval

   4. Ordinal

• Question 17

  10 Points

  Listed below are measured amounts of caffeine​ obtained in one can from each of 14 brands. Find the variance, for the given sample data.

  57

  34

  30

  44

  0

  33

  41

  60

  47

  56

  41

  31

  0

  0

  The answer is BLANK-1 (Round to the nearest tenths

Answer 1

16.

A nominal variable is a categorical variable. Observations can take a value that is not able to be organized in a logical sequence.

Hence Nominal variable.

17.

The sample size is n = 14.

The provided sample data along with the data required to compute the sample mean Xˉ and sample variance s^2 are shown in the table below:

	caffeine	caffeine2
	57	3249
	34	1156
	30	900
	44	1936
	0	0
	33	1089
	41	1681
	60	3600
	47	2209
	56	3136
	41	1681
	31	961
	0	0
	0	0
Sum =	474	21598

The sample variance s^2 is

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