Answer the following using the dataset provided in the Exam 1 Excel worksheet. (Numbers should be rounded to 2 decimal places)Variance (Assuming data is a sample, intended to estimate a population) =

Which statement best explains why grouped frequency distributions are used instead of ungrouped distributions for large datasets?

Answer the following using the dataset provided in the Exam 1 Excel worksheet. (Numbers should be rounded to 2 decimal places)Standard Deviation (Assuming data is a population) =

Answer the following using the dataset provided in the Exam 1 Excel worksheet.N =

Answer the following using the dataset provided in the Exam 1 Excel worksheet. (Numbers should be rounded to 2 decimal places)Mean =

When a neuron’s membrane potential reaches -55mV these channels open.

_________________ produce myelin in the PNS, whereas _________________ produce myelin in the CNS.

SSRI’s such as zoloft, lexapro, and celexa act by 

Suppose nominal GDP was $360 billion in Year 1 and $450 billion in Year 2. The price index was 120 in Year 1 and 125 in Year 2. Between Year 1 and Year 2, real GDP

Assume the following data for a country   in millions Total Population 500 Population under 16 or  institutionalized 120 Not in the labor force 150 Unemployed 23 Part-time workers looking for full-time jobs 10 a) What is the size of the labor force? What is the official unemployment rate?  (show work) (4) b)  Assume that those that are not in the labor force declines to 100 and the number of unemployed increases to 50  (all other numbers stay the same). What is the size of the labor force now?  What is the unemployment rate?  show work(4) c)  Explain how “good news” about the future of the economy can actually cause the unemployment rate to increase?  (3) d) If you were running for political office, would you want to promote reducing the unemployment rate OR promote increasing the labor force?  Explain using ideas from chapter 8 & 9.