What is the differences between qualitative data and quantitative data?

Qualitative: descriptive and quantitative: numerical

What is the formula for midpoint?

(lower class limit + upper class limit) / 2

What is the difference between parameter and statistics?

Parameter vs. Statistics= Population vs. sample

What is the term of random variable?

A value linked to an experiment’s outcome.

What is the term for simple random sample?

A sample where all group have an equal chance.

What is the term of permutation?

Ordered arrangement of objects.

studbud

Chapter 1-5 questions review. Britney, Nariz , crystal p:3

20 termsStudBud Administration

Imported from external platform

Flashcards20 cardsFPractice quizPHost liveL

Questions 20

Answers

1
What is the formula for classical probability?
True
False
2
What is the term for frequency histogram?
Uses bars to show frequency.
Histograms show exact data values on the x- axis.
The y- axis of a histogram displays categories.
Histograms are used for categorical data only.
3
What is the differences between qualitative data and quantitative data?
Qualitative: descriptive and quantitative: numerical
Qualitative: collect data, Quantitative: written with no numbers
Qualitative: measures in numbers, Quantitative: descriptions of emotions
Qualitative: percentage, quantitative: measured
4
What is the formula for permutation order?
False
True
5
What is the formula for midpoint?
(lower class limit + upper class limit) / 2
|E_M| ≤ (b-a)3 / (24n2) * K
((x1 + x2)/2, (y1 + y2)/2).
None of the above
6
What is the formula for weighted mean?
False
True
7
What is the term of sampling distribution?
Bigger samples make the sampling distribution narrower.
Sampling distribution only work for normal population.
Sample stats.
Sampling distributions are the same as population distributions.
8
What is the difference between parameter and statistics?
Parameter vs. Statistics= Population vs. sample
A statistics is the true value, a parameter estimates it.
Parameters measure samples, statistics measure populations.
Statistics are fixed, parameters vary.
9
What is the formula of strand are deviation?
True
False
10
What is the formula of variance?
True
False
11
What is the formula for sample means and population mean?
True
False
12
What is the term of normal distribution?
All data fits a normal distribution.
Normal curve are always perfectly flat.
Probability curve.
The mean and median must be zero in mortal dist.
13
Is this the formula for relative frequency?
False
True
14
What is the formula of standard normal distribution?
False
True
15
What is the term of random variable?
A random variable’s value is always known in advance.
A value linked to an experiment’s outcome.
Random variables are always whole numbers.
Random variables must follow a normal distribution.
16
What is the term for simple random sample?
A sample where all group have an equal chance.
A sample group where it only has a equal size
All of the above
Neither can be the same size or has the same chance of being selected
17
What is the term for confounding variable?
An unclear cause in a study.
Confounding variables make study results more accurate.
Only experiment have confounding variables; observational studies doesn’t.
A confounding variable is the same as an independent variable.
18
What is the term of binomial experiment?
Binomial experiments don’t count successes.
The probability of success changes with each trial.
Two outcomes.
Binomial trials must have more than two outcomes.
19
What is the term of permutation?
Permutations allow repeated items in arrangements.
Ordered arrangement of objects.
Permutations are the same as combinations.
Order doesn’t matter in permutations.
20
What is the formula for combination order?
False
True

Chapter 1-5 questions review. Britney, Nariz , crystal p:3 Flashcards | StudBud