The following graphs have no scales assigned to them. Which of them could not possibly be density curves for a continuous random
variable if they were provided with the right scale?
2 answers:
Probabilities are always positive, between 0 and 1. This rules out C.
Answer:
A, D and E
Step-by-step explanation:
Given are the graphs of some functions and we have to find which are the density functions.
Since total probability is always 1, area under the curve must be equal to 1.
APplyig this we find that graph B cannot be density function.
Since probability is non negative graph C cannot be probability density function.
A, D and E are the density graphs.
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Answer:
Step-by-step explanation:
1) 17x + 175 = y
2) 17(28) + 175 = y
476 + 175 = y
651 = y
Cost for bus and 28 students is $651
3) 889 - 175 = 714
714/ 17 = 42
42 students attempted the trip
Add 170,000 and 180,000 together then divide by 2. The number is 175000.
Answer: 32.67
Explanation: Use multiplication to get this answer, and a basic hint is the word "of", that's a word in Mathematics for multiplying.
A full circle is 360°, so a 60° circle is 1/6th of the area.
1/6th of 42π m² is 7<span>π m², so answer B.</span>
Hope you could understand.
If you have any query, feel free to ask.
