stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
1-5 chapters Review Flashcards | StudBud
Explore
/
1-5 chapters Review
Normal Probability Distributions
What is an frequency histogram?
1-5 chapters Review
20 terms
·
StudBud Administration
Imported from external platform
Flashcards
20 cards
F
Practice quiz
P
Host live
L
Questions
20
Answers
1
What is an frequency histogram?
Uses potted on the grid formed by the axes, and connected by lines
Uses bars to represent the frequency distribution of a data set
2
Normal Probability Distributions
(A): 3.2 (B):3.0 and 3.4
(A):3.65 (B): 2.24 and 3.38
(A): 3.66 (B):3.24 and 3.48
(A): 2.0 (B): 3.1 and 3.0
3
Event A: Randomly select a male psychology major.Event B: Randomly select a psychology ma
not mutually exclusive
mutually exclusive
4
What is Descriptive Statistics?
generalizations about an entire population based on absolutely no data
The branch of statistics that involves the summarization and display data
Statistics that make histograms
type of magic that allows you to create new data
5
Find 9p5
15,120
32,154
26,000
6
What is an event?
a subset of the sample space
Randomly assigning subjects to different treatments groups
7
Find mean and standard deviation.σ=25, n=50, μ=150
μ=150,σ=25, n=50
σ=30, n=40, μ=250
μ=28, σ=155, n=5
σ=25, n=2.8, μ=125
8
What are the data types date sets can consist of
Directional Dates
Colorimetric Numerals
Qualitative or Quantitative
9
what is the formula for midpoint?
m=Lower class limit + Upper class limit/2
M= y-y/2
10
Find the probability: P(3)
0.080
O.0902
0.080
11
What is the mean of the standard normal distribution and the deviation of standard deviation?
mean of one and a standard deviation of zero.
mean of one and a standard deviation of two.
mean of two and a standard deviation of one.
mean of zero and a standard deviation of one.
12
Find the probability: P(2) when n=5
0.2254
O.6754
0.3125
0.3113
13
how do you find mean?
all the values in a dataset and then divide by the total number of values
Find the middle number
14
A date set can have the same mean, mode, and median.
True
False
15
What is sampling distribution?
A sampling distribution is the same as the population distribution
A sampling distribution is only relevant for large sample sizes
A sampling distribution is just the distribution of a single sample
the probability distribution of a given random-sample-based statistic
16
What is the formula for standard deviation
σ = √(∑(x−¯x) ( x − x ¯ ) 2 /n)
σ = √(∑(x+¯x) ( x −+x ¯ ) 2 +n)
17
True or Flase: About one-quarter of a data set falls below Q1
False
True
18
What is the formula for theoretical probability?
describes how likey an event is to occur
(Number of favorable outcomes) / (Total number of possible outcomes).
19
How does a Sample relate population?
A Sample is a subset of a population.
A population is an subset of the sample
20
qualitative or quantitative:Weights of dogs at an animal rescue facility.
Qualitative
Quantitative
