Based on the information given, it should be noted that the mean and standard deviation of Y will be 0.4899 and 0.699 respectively.
<h3>Calculating the mean.</h3>
Based on the information given, it should be noted that the probability distribution for y will be:
Y 0 1. 2
Probability 0.63. 0.25. 0.12
The mean of Y will be:
= (0 × 0.63) + (1 × 0.25) + (2 × 0.12)
= 0 + 0.25 + 0.25
= 0.49
The variance will be 0.4899. Therefore, the standard deviation will be:
= ✓0.4899
= 0.699
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X=205
y=41
You come across these answers by making an equation or system of equations based on the word problem given. 1. x+y=246 and 2. x÷y=5 . The you would multiply by y on both sides and get x=5y . Then you would substitute for x in the first equation and get (5y)+y=246 . Then you would get 6y=246 . Them you would divide by 6 on both sides and get y=246÷6 . Then you would get y=41. Then you would plug the y value into the first equation. You would get that x+(41)= 246, subtract on both sides and get x=246-41, then you would get an answer of x=205.
Answer:
D
Step-by-step explanation:
Hope you get a 100% on the test
disclaimer: this is just so u can mark that person brainliest
Answer:
<u>The answer is B.</u>
Step-by-step explanation:
When you have three numbers in the left bubble, and 4 on the right for "mapping a," you cant have 2 going into one number on the right. You can only have 1 number going into 2 (shown in the mapping b image).
<u>Thus, the answer will be "Mapping B."</u>
The answer is b. 2.5 x 10^5
