Samples of what you will learn in Math 110:
1. For the given data set, build a stem-and-leaf plot. 12, 14, 14, 21, 22, 28, 29,
31, 33
2. A die has 6 sides labeled 1, 2, 3, 4, 5, 6. Find the probability of rolling a 2.
3. Find the probability that a coin is flipped 8 times and we get tails exactly 3
times.
4. A sample is taken from a population. The sample values are 12, 14, 14, 21, 22,
28, 29, 31, 33. Use a 5% significance to test the claim that the mean population
value is above 29.0.
-
- Solution
The evidence indicates that it is unlikely that the population mean is above 29.0.
5. The following data are child ages and weights. Build a regression model and use
the model to predict the weight of a 10-year-old child. Explain the prediction.
6 6 7 8 8 9
9 10 11
70 60 70 60 90 70 80
90 120
-
- Solution
The model is
The predicted weight is
Based on our data, the predicted weight of a 10-year-old child is 94.15 pounds
2. Solve the following formula for x.
3. Given the function
, plot the points on the graph of this function for the x-values 2, 3, 4.4. Simplify the following expression and write the answer as a decimal.
5. Graph the following inequality on a number line: 23.478 < x < 35.962
