Mathematics, 15.04.2021 16:50, laladance123
Tai has a bag of different-colored balloons. Without looking in the bag, she selects a balloon, records its color, and puts it back in the bag. All balloons are equally likely to be chosen. She performs 50 trials.
Number of times a red balloon was chosen 15
Number of times a yellow balloon was chosen18
Number of times a green balloon was chosen9
Number of times a pink balloon was chosen8
Based on the data Tai collected, what is the estimated probability, in simplest form, of choosing a yellow balloon from the bag?
A. 9/50
B. 18/100
C. 9/25
D. 50/18
Answers: 2
Mathematics, 21.06.2019 23:10, ylianafghgfdsnm1479
Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?
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Mathematics, 22.06.2019 03:30, ddwithdadarco
Given the equation −4 = 12, solve for x and identify if it is an extraneous solution.
Answers: 1
Mathematics, 22.06.2019 04:40, chl75
The discrete random variables x and y take integer values with joint probability distribution given by f (x, y) = a(y−x+1) 0 ≤ x ≤ y ≤ 2 or =0 otherwise, where a is a constant. 1 tabulate the distribution and show that a = 0.1.2 find the marginal distributions of x and y. 3 calculate cov(x, y).4 state, giving a reason, whether x and y are independent. 5 calculate e(y|x = 1).
Answers: 2
Tai has a bag of different-colored balloons. Without looking in the bag, she selects a balloon, reco...