A scientist is studying the characteristics of butterflies and collects a random sample of butterflies to measure. Information regarding the wingspan of the butterflies is shown in the histogram below. A histogram titled Butterfly Wingspans has wingspans on the x-axis and frequency on the y-axis. Wingspan of 3 has frequency 6; 3.5, 3; 4, 8; 4.5, 14; 5, 6; 5.5, 3; 6, 5; 6.5, 6.7

Which of the following is a true statement regarding the information shown in the histogram?

Wingspan is a categorical variable.
Wingspan is a discrete quantitative variable.
Wingspan is a continuous quantitative variable.
Frequency is a continuous quantitative variable.

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

Lv beethoven software supplies customized software to a managed healthcare system. lv beethoven software's costs for the software is $1,723,000. lv beethoven software sells the software to the healthcare system for $3,816,981.10. overhead expenses are estimated at 47% of the selling price. what is lv beethoven software's net profit to the nearest dollar?

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.