Quantitative variable has a value or a numerical measurement. An example would be age 5 because it is a number. Qualitative is an category or group. Example would be the 8th grade class.
What is the difference between quantitative and qualitative variable? Also give an example of each.
100
Lower class limit+upper class limit/2
What is the formula for Midpoint?
100
7
What is the mode of the data
5 7 9 3 7 2 3 7 5
100
1. Perfect linear correlation
2. No correlation
3. Positive correlation
4. Negative Correlation
What are different types of correlation
100
When you roll a die and flip a coin. This is an example because you flipping a coin again doesn't have any thing to do with the first flip.
What is an example of independent events?
200
1. nominal level of measurement
2. ordinal level of measurement
3. interval level of measurement
4. ratio level of measurement
What is the levels of measurements
200
1. Class limits
2. Class boundaries
3. Frequency
4. Class midpoint
What is is a frequency table?
200
sum of all the number then divide it by how many numbers
How do you find the mean?
200
- -
x and y
What points ate always on the least square line?
200
Permutation is when the order matters and combination is when the order does not matter.
What is the difference between permutation and combination?
300
1. Random sampling
2. Cluster sampling
3. Systematic sampling
List different way of sampling
300
1. Typical mound shape symmetrical
2. Typical uniform
3. Skewed left
4. Skewed right
typical bimodal histogram
What are the different kinds of distribution shapes?
300
1. Q1 and Q3
2. Median level
3. Highest and lowest values
What is needed in a box and whisker plot?
300
No correlation
What kind a correlation is this? Someone shoe size and there favorite food.
300
Independent: p(A and B) = P(A) x P(B)
Dependent: p(A and B) =P(A) x P(B/A)
What is the formula for Independent and Dependent event?
400
1.Truthfulness of Response
2. Hidden Bias
3. Vague wording
What are some pitfalls of a surveys?
400
First, you display your data along the horizontal axis. Secondly, you you plot each data value with a dot above the corresponding value which that is on the horizontal axis.
How do you make a dotplot?
400
You take your Q3 and subtract it from yourj Q1
How do you find interquartile range?
400
When studies show that reading to your child at a young age increases their success rates in school. The lurking variable is their genetic IQ.
What is an example of a lurking variable?
400
Mutually exclusive: p(A or B) = P(A) + p(B)
What is the formulas for mutually exclusive and not mutually exclusive?
500
Placebo effect is used in an experiment by only hafe getting the treatment but that other half is unaware that they are not getting the treatment.
How is placebo effect used in a experiment?
500
False they are left to right
True or False
Is a pareto chart arranged from right to left according to decreasing height?
500
u-2o to u +2o
What is the equation for chebyshev's theorem for 75%?
500
R= sample correlation
P= population correlation coefficient
What does r and p mean?
500
disioint
What is it called when two events can not occur together?