For the above six graphs circle the correct word applicable to that graph in the column:

Shape of correlation | |
---|---|

A | none | linear-positive | linear-negative | non-linear |

B | none | linear-positive | linear-negative | non-linear |

C | none | linear-positive | linear-negative | non-linear |

D | none | linear-positive | linear-negative | non-linear |

E | none | linear-positive | linear-negative | non-linear |

F | none | linear-positive | linear-negative | non-linear |

- Measures of Central Tendency
Rainfall in inches per year for Pohnpei 1994 to 1999 x 163 169 154 173 128 196 - Find the sample size n: ______
- Find the minimum: ______
- Find the maximum: ______
- Find the range: ______
- Find the median: ______
- Find the mode: ______
- Find the sample mean : ______
- Find the sample standard deviation sx: ______
- Find the sample coefficient of variation CV:______

- Linear Regression
Year (Year 0 is 1994) x Total Rainfall in inches in Pohnpei y 0 163 1 169 2 154 3 173 4 128 5 196 - For the data above, determine the slope m = ________
- For the data above, determine the y-intercept = ________
- Determine the correlation coefficient r = ________
- Determine the coefficient of determination = ________
- What would be the projected rainfall amount in 2000? ________________
- Why is 1998 (year 4) so much lower than the other years (Use the back to have enough space to write out your answer)?

- Dependent Probabilities
Number of Females (F) Number of Males (M) Sums Students who prefer chicken for lunch (C) 10 15 ______ Students who prefer fish for lunch (S) 20 15 ______ Sums ______ ______ ______ - Determine the probability that a member of sample is female: P(F) = ______
- Determine the probability that a member of sample is female and prefers chicken: P(F and C) = _____
- Determine the probability that a member of sample is female or prefers fish: P(F or S)
- Determine P(F, given C) = _______________
- Which do you prefer, chicken or fish for lunch?

- Probability Distributions
Total inches of rain in Pohnpei per Month (Class Upper Limit) x Frequency (Number of months with rainfall amounts between the CLL and CUL) Relative Frequency P(x) x*P(x) 6 8 _______ _______ 12 17 _______ _______ 18 35 _______ _______ 24 8 _______ _______ 30 6 _______ _______ **Sum:**_______ _______ _______ - Calculate the relative frequencies P(x) and record the relative frequencies in the table above.
- Sketch a relative frequency histogram on the BACK of this sheet of paper, labeling your horizontal and vertical axes as appropriate.
- What is the shape of the distribution?
- Calculate the mean value m using the fourth column of the table above. m = _______

Statistic or Parameter | Symbol | Equations | Excel |
---|---|---|---|

Square root | =SQRT(number) | ||

Sample mean | Sx/n | =AVERAGE(data) | |

Sample standard deviation | sx | =STDEV(data) | |

Sample Coefficient of Variation | CV | 100(sx/) | =100*STDEV(data)/AVERAGE(data) |

Slope | b | =SLOPE(y data, x data) | |

Intercept | a | =INTERCEPT(y data, x data) | |

Correlation | r | =CORREL(y data, x data) | |

Coefficient of Determination | rē | =(CORREL(y data, x data))^2 |