Concepts You Should Know In Stats
a data point that differs significantly from other observations
What is an outlier?
µx = np
What is mean for a binomial distribution?
How much faster do people who own sports cars drive on the freeway compared to people who own economy cars? 520 sports cars and 890 economy cars were clocked as they passed by on the freeway.
What is a Confidence Interval for a Difference Between 2 Means?
The chances of flipping a fair coin and getting heads.
What is 50%?
You picked...AP Calculus!
The integral of sin(x)
What is -cos(x) + C? (did you forget your plus c?)
a statement that the effect being studied does not exist
What is a null hypothesis?
Q3-Q1
What is IQR?
A medical researcher is studying the decline in the infection rate when a new surgery technique is used. 400 surgeries using the new technique and 400 using the old technique are performed and the patients are later checked to see if they developed an infection.
What is a Confidence Interval for the Difference Between 2 Proportions?
The probability of throwing a 3 or a 4 in a six-sided die, where each side has a number between 1 and 6.
What is 33%?
you picked...APUSH!
Which of the following conflicts resulted in the successful expulsion of Europeans from the upper Rio Grande region of North America for nearly a decade?
a. Pontiac's Rebellion
b. The Pueblo Revolt
c. King Philip's War
d. The Pequot War
e. World War II
What is The Pueblo Revolt?
The entire group of individuals or objects that are of interest in a statistical study.
What is a population?
The table used for t distribution critical values.
What is Table B?
How likely are drivers to come to a complete stop at a stop sign? A researcher placed hidden camera at a stop sign and observed 150 cars to see if they came to a complete stop.
What is a Confidence Interval for a Proportion?
The probability of getting the answer WRONG when answering a multiple-choice question that has four answers. (you didn't study again)
What is 75%?
You picked...AP Biology!
A dog is following the scent of a jackrabbit.
Which of the following accurately describes how the dog's brain integrates information for smell?
a. Chemoreceptor cells in the nasal cavity send impulses to the appropriate area of the brain.
b. Chemoreceptors in the brain send impulses for smell in the nasal cavity.
c. Chemoreceptors on epithelial cells of the tongue send hormones to the appropriate area of the brain.
d. Receptors originating in the nose send action potentials to the motor regions of the brain.
e. what the freak is a chemoreceptor
What is a. Chemoreceptor cells in the nasal cavity send impulses to the appropriate area of the brain?
The average of a set of numbers.
What is a mean?
What is Standardized Test Statistic?
5000 people were asked what their favorite movie is and who their favorite author is. Based on the data can you conclude that there is a relationship?
What is a Chi-Square Test for Independence?
The probability of selecting an even number from the range 0 to 10.
What is 54.54% (6/11)?
you picked...AP Chemistry!
The value of K, for the evaporation of CHOHI)
at 300 K is closest to
(A)0.04
(B) 0.2
(C) 5
(D) 30
What is (B) 0.2?
A range of values within which a population parameter is likely to fall.
What is a confidence interval?
r(sy/sx)
What is b?
Do people who own an iPod listen to music more often than those who own other brands of MP3 players? 75 iPod owners and 75 others were all asked how many hours per week they listened to music.
What is a Hypothesis Test for the Difference Between 2 Means?
The probability of drawing three aces in a row in a regular deck of cards that has 52 cards. (Assuming that you do not replace the card you had drawn before the next draw).
What is approximately 0.0181%? (1 in 5525)
you picked...AP Physics E&M!
If a dielectric is inserted between the plates of a capacitor while the capacitor maintains its connection to a constant voltage source, which of the following is true?
a. The capacitance of the capacitor is unchanged.
b. The charge on the capacitor plates increases.
c. The potential difference across the capacitor increases.
d. The electric field between the capacitor plates increases.
e. The electric field can be ignored for today
What is b. The charge on the capacitor plates increases?