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bekas [8.4K]
2 years ago
14

40% of students in a class are left-handed. Find the probability that the random sample of 20 Students in a class will have. (a)

At least 5 Left-handed (b) Less than Four left-handed (c) Exactly 6 Left-handed students, apply correction for continuity for only C.​
Mathematics
2 answers:
Maurinko [17]2 years ago
5 0

I am left Handed!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

kkurt [141]2 years ago
5 0

Answer:

40% of 20 is 8

Step-by-step explanation:

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A company that makes​ hair-care products had 5,000 people try a new shampoo. Of the 5,000 ​people, 10 had a mild allergic reacti
Margarita [4]

Answer:

0.002%

Step-by-step explanation:

10/5,000 = 0.002

Hope this helps!

4 0
2 years ago
Read 2 more answers
Example:
Aleonysh [2.5K]

Answer:

AB // CD and AD // BC, then ABCD is a parallelogram

Step-by-step explanation:

Step 2: Show AD // BC

A = (-3 , 3) and D = (0 , 0)

Find the slope of AD

m_{AD}=\frac{0-3}{0--3}=\frac{-3}{3}=-1

B = (2 , 5) and C = (5 , 2)

m_{BC}=\frac{2-5}{5-2}=\frac{-3}{3}=-1

The slope of AD = the slope of BC

So AD // BC because they have the same slope

Step 3:

Each two opposite sides are parallel in quadrilateral ABCD

So the quadrilateral is a parallelogram

8 0
3 years ago
Can you form an angle bisector hen the angle is a straight line?
Arte-miy333 [17]
Yes. Angle bisector means where after splitting the angle the 2 angles formed has the same size.
Therfore when you construct an angle bisector on a straight line, both new angles would be 90°, and the angle bisector is just right in the middle.
6 0
3 years ago
A certain forest covers an area of 4800 km^2 . Suppose that each year this area decreases by 5.25% . What will the area be after
9966 [12]

Answer:

the area after 6 years is  3,473 km^2

Step-by-step explanation:

The computation of the area after 6 years is as follows:

= Area × (1 - decreased percentage)^number of years

= 4,800 km^2 × (1 - 5.25%)^6

= 4,800 km^2 × 0.9475^6

= 3,473 km^2

Hence, the area after 6 years is  3,473 km^2

5 0
2 years ago
Write 0.43 as a fraction, reduced to the lowest terms​
alexdok [17]

Answer:

43/100

Step-by-step explanation:

It would have to be 43/100 becuase 43 is a prime number, therefore it cannot be simplified.

8 0
3 years ago
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