Of 10 students surveyed in a school , 7 picked Summer as their favorite season. If the school has 350 students. How many can be expected to perfer summer?
Answers
Answer:
The expected number of students to prefer summer=245
Step-by-step explanation:
Step 1
Determine the number of students that prefer summer as their favorite season, and the sample size
number that prefer summer=7
sample size=10
Step 2
Determine the probability of a student picking summer as their favorite season as shown;
Probability=number that prefer summer/sample size
Probability=7/10=0.7
Step 3
Determine the total number of students out of the total population that can be expected to prefer summer as follows;
Expected number of students=probability×total number of students
where;
probability=0.7
total number of students=350
replacing;
Expected number of students=(0.7×350)=245
The expected number of students to prefer summer=245
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Can someone help me with this math homework please!
At a high school, the probability that a student takes a science class and a history class is 0.48. The probability that a student takes a science class is 0.82, and the probability that the student takes a history class is 0.64. What is the probability (rounded to the nearest hundredth) that a student takes a history class given that the student is taking a science class?A)0.39 B)0.75 C)0.30 D)0.59
PLEASE HELP ME THANK YOU SO MUCH!How far away can a person live from a radio station and hear its broadcast if the signal covers a circular area of 40,000 square miles? Write your answer as a whole number.IM MARKING BRAINLIEST!! :D
Which inequality is equivalent to 7x-2y> 8.A) y> 7/2x+8 b) y>-2/7x+8/7 c) y <7/2x-4 d) y <-2/7x-4/7 (whats a Inequality? )
-5, 0, 3
0, -1 ± √24
0, -1 ± √6
0, 1 ± √6
Answers
First, take common factor:
x(x^2 - 2x - 5 )= 0
Now use the quadratic formula to find the roots of the trinomial
x = [- b +/- √(b^2 - 4(a)(c)] / 2a
x = [2 +/-2√6 ]/2
x = 1 + √6 and x = 1 -√6
Then the solutions are:
x =0; x = 1 + √6; x = 1 - √6
That is the las option shown.
Answers
now, keeping in mind that a circular clock has 360° total, and there are 12 hours labeled on it evenly, so the angle between each hour label is 360 ÷ 12 = 30.
so, from 3pm to 5pm, it moved by 30° + 30° = 60°.
from 5pm to 5:30, that's only half an hour, so it moved half 30°, or 15°.
60° + 15° = 75°.
Answers
20,000+1,000+900+80+9+0.09+0.008
21,989.098 in word form would be...
Twenty-one thousand nine hundred eighty-nine and ninety-eight thousandths
Answers
Answer:
Greater
Step-by-step explanation:
The domain for f(x) is all real numbers greater than or equal to 2.
x>=2
Answers
y -y1=m(x-x1) where (x1,y1) is the point and m is the slope
y - 3 = 6(x -8)
Answers
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8-3 = 5
55/5 = 11 books