


Audrey Andrews
The University of Texas at El Paso
Statistics
Statistics teacher | Experienced educator in USA
Greetings! I'm a passionate educator with a Statistics major from The University of Texas at El Paso. My commitment to fostering understanding spans various subjects. Whether unraveling the intricacies of data analysis or simplifying complex concepts, my goal is to empower students with knowledge. Let's embark on a journey of learning together!
Questions
- A jar contains 100 marbles. There are 35 blue marbles, 34 green marbles, 28 red marbles, and 3 yellow marbles. What is the probability of randomly selecting a yellow marble?
- Given #{a,b,c} in [-L,L]# What is the probability that the roots of #a x^2+b x + c = 0# be real?
- Suppose we represent time endowment (24 hours/day) by H, hours of paid work by L, wage rate per hour, by W, and leisure by ℓ, How to write an expression for the following ?
- When #n# is small (less than 30), how does the shape of the #t# distribution compare to the normal distribution?
- If you roll two dice, what is the probability of rolling a 6 and a number greater than 4?
- A course has two sections, Section A and Section B. On the most recent exam, Section A's 10 students averaged 80, and Section B's 20 students averaged 90. What is the course average for this exam?
- What is the difference between the mean, median, and mode?
- What does a 95% confidence interval versus a 99% confidence interval tell you?
- How do you find the range in box plots?
- Given a set # {-15,1,200,x,1} #, for what x would the mean of the set be -15?
- In how many ways can 9 books be arranged on a shelf?
- What is the z-number associated with a 91% level of confidence? (In two decimal places)
- How do you find the 95% confidence interval?
- Which of the following statements is a conditional statement?
- In a two-child family, one child is a boy. What is the probability that the other child is a girl?
- What is the difference between mutually exclusive and independent events?
- How do you interpret confidence intervals in statistics?
- What is the test of a hypothesis called?
- Suppose that you toss a coin and roll a die. What is the probability of obtaining tails and a five?
- A packet of vegetable seeds has a germination rate of 96%. What is the probability that exactly 10 of 12 seeds planted will sprout?