What does this symbol represent: μ
Mu (population mean)
These are the two main measures of center.
Mean, Median
This is Ava's concentration in the mathematics major (eg. Mathematical Science, Actuarial Science, Statistics, Education)
Statistics
This function returns the average of a data range.
=AVERAGE
Calculate the average of 2,2,5,4,8,3,4
4
What does this symbol represent: H0
Null Hypothesis
This is the term for the entire group being studied or described.
Population
Ava was this major before she switched to math.
Biology
This function returns the median of a data range.
=MEDIAN
Calculate the number of outfits that could be made from 4 shirts, 5 pairs of pants, and 3 pairs of shoes.
60 outfits
What does this symbol represent: N
Population Size
This term describes the threshold for rejecting a null hypothesis.
Alpha (significance level)
Ava has a partner of almost 2 years. This is their name.
Dragon <3
This function calculates the number of cells that meet a certain criteria.
=COUNTIF
Calculate the 5 number summary for: 2,2,3,4,6,8,8
Min=1
Q1=2.5
Median=4
Q3=7
Max=8
What does this symbol represent: α (its an alpha)
Alpha (Significance Level)
These are the two types of variable classifications. (Hint: they both start with Q)
Qualitative and Quantitative
This is the number of instruments Ava can play.
4 - (Ukulele, Drums, Guitar, Piano)
5 if you include singing
This function calculates the probabilities in a normal distribution, returning the area to the left.
=NORM.DIST
A survey suggests that 85% of college students have a facebook profile and 54% have an instagram profile. 42% have both. What percentage of students have neither?
3%
What does this symbol represent: σ2
Variance
This theorem states that, with a large enough sample size (generally n ≥ 30), the distribution of the sample means will approximate a normal distribution, regardless of the original population's distribution.
Central Limit Theorem
This is the number of plants Ava has in her apartment.
11
This function calculates the sample standard deviation for a data range.
=STDEV.S
A coin is tossed three times. What is the probability that it lands on heads exactly one time?
3/8 or 0.375