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umka2103 [35]
3 years ago
8

Suppose that 12% of all males suffer some form of color blindness.

Mathematics
1 answer:
vredina [299]3 years ago
3 0

Step-by-step explanation:

The mean and standard deviation are:

μ = p

σ = √(pq/n)

Given p = 0.12, q = 0.88, and n = 200:

μ = 0.12

σ = √(0.12 × 0.88 / 200)

σ = 0.023

Since the sample is large, it can be approximated with a normal distribution.  Find the z-score:

z = (x − μ) / σ

z = (0.14 − 0.12) / 0.023

z = 0.87

Use a calculator or table to find the probability:

P(Z > 0.87) = 1 − 0.8078

P(Z > 0.87) = 0.1922

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Can you please help with both? :)​
QveST [7]

Answer: 1. 12 2. 120

Step-by-step explanation:

1. so basically 9/6=18/x

since they are similir the'd have the same ratio

sooo you just solve for x (multiply 6 by 18, and then divide by 9) and you get 12

2. same thing except you put 6/10=12/x, and solve it (multiply 10 by 12 and divide by 6) and u get 20

dats how i would do it but there are other ways too im sure :)

hope this helps

8 0
3 years ago
Diameter = 18 cm
miskamm [114]

Answer:   B. 254.34 cm^2

Step-by-step explanation:

The area of a circle is pi times the radius squared.

Using the diameter we have to find the radius.

The diameter is two times the radius meaning that the radius is half the diameter.

18/ 2 = 9

The radius will be 9 cm

Now using the formula   v= pi * r^2    ,  input the value for pie and the radius and solve for  v  the volume

v = 3.14 * 9^2

v= 3.14 * 81

v = 254.34 cm^2

7 0
3 years ago
Read 2 more answers
HELP PLEASE!! &lt;3 <br> A rectangle has vertices (w,v), (w,z), and (z,z). Find the fourth vertex.
Vaselesa [24]

Answer:

Hey, Try practiceing on your own

Step-by-step explanation:

8 0
3 years ago
You buy a 33-pound bag of flour for $9 or you can buy a 1- pound bag for $0.39. Compare the per pound cost for the large and sma
slamgirl [31]

Answer:

see below

Step-by-step explanation:

9 dollars / 33 lbs = .272727 dollars per lb

.39 / 1 lbs = .39 per lb

The large bag is less expensive

6 0
3 years ago
Read 2 more answers
Kenny had 5/7 more trading cards than lee. After Kenny collected 50% more trading cards, he had 220 more trading cards than lee.
svp [43]

Answer:

Step-by-step explanation:

Let X is the number of cards Kenny has

Let Y is the number of cards Lee has

1. Kenny had 5/7 more trading cards than lee, it means

X = Y + 5/7X (1)

2. After Kenny collected 50% more trading cards, he had 220 more trading cards than lee, it means:

X + 50%X = Y +  220 (2)

So, we solve the 2 equations to find out X and Y

\left \{ {{X=Y + 5/7X} \atop {1.5X=Y +220}} \right.

<=> X = \frac{3080}{17} and Y = \frac{880}{17}

<=> X ≈181 and Y ≈ 52

6 0
3 years ago
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