In math class, students must randomly draw a card that contains an equation that they must graph on the board.If the cards contain the equations 2y = 4x + 2, x(x + 1) = 0, 2x + y = 0, x = 2y , x2 + 1 = 0, and y - 2x = 0, then what is the probability that a student will graph a line whose slope is 2?
Each day, Mr. Samms randomly chooses 2 students from his class to serve as helpers. There are 15 boys and 10 girls in the class. What is the probability that Mr. Samms will choose 2 girls to be helpers
a deck of a cards is number 1 to 32, if you draw one card at random, what is the probability that the card you draw will have 5 as a factor
A deck of cards is numbered 1 to 35 if you draw one card at random what is the probability that the card you draw will have 4 as a factor?
Twelve randomly-chosen students were asked how many times they had missed class during a certain semester, with this result: 2, 1, 5, 1, 1, 3, 4, 3, 1, 1, 5, 18. For this sample, the median is _____. A. 2.5 B. 3 C. 3.5 D. 2 need help please
. In a group of 150 students, more students are taking a math class than are taking a science class this semester. If 80 are taking a science class and 25 are not taking either math or science this semester, what is the minimum number of students who could be taking both math and science this semester?
In a group of 150 students, more students are taking a math class than are taking a science class this semester. If 80 are taking a science class and 25 are not taking either math or science this semester, what is the minimum number of students who could be taking both math and science this semester? Is it 81? I was trying to take an example from the book and I don't know if my equation is correct
In a certain math class, each studen has a textbook, every two students share a books of tables, every 3 students share a problem book, and every 4 students share a mathematics dictionary. If the total number of books is 75, how many students are in the class? How many students share tables? Hor many students share a problem book? How mnay share a mathematics dicitonary?I will start if for you let TB be number texbooks, BT number of books of tables, PB, and MD are the others TB + BT + PB + MD=75 BT =TB/2 PB =TB/3 MD = TB/4 You should be able to take it from here.
At a local high school students were randomly assigned to one of two math teachers- Mrs smith and mrs jones. After the assignment, Mrs Smith had 30 students and mrs jones had 25 students. at the end of the year each class took the same standardized test. mrs smiths students had an average test score of 78 with a standard deviation of 10; and mrs jones students had an average test score of 85 with a standard deviation of 15. Test the hypothesis that mrs smith and mrs jones are equally effective teachers. Use a o.10 level of significance. What statistical test should be used?
If a fair coin is flipped and a card is randomly drawn what is the probability that the coin will land heads up or the card will be a heart? Why? I know the probability of a coin flip is 1/2 and the probability of drawing a heart is 1/4 but I am confused on what to do next. Please help. Thanks!
A card is randomly drawn from a standard 52 card deck find the probability that an ace or a club will be drawn. HELP!