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galben [10]
3 years ago
13

Mrs. duggal teaches 25 students. out of these 25 students, 16% wear glasses. this grid represents the 25 students in mrs. duggal

's class.
Mathematics
1 answer:
Harman [31]3 years ago
8 0
4 people wear glasses and there is no grid
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According to a poll, 30% of voters support a ballot initiative. Hans randomly surveys 5 voters. What is the probability that exa
VMariaS [17]

The probability that exactly 2 voters will be in favor of the ballot initiative is 0.309.

<h2>Given</h2>

Number of voters who support ballot initiative = 30 % = 0.30

Number of voters who does not support this initiative = 1 - 0.30 = 0.70

Number of voters selected for Surveying = 5

<h3>What is probability?</h3>

The probability of success and failure remain the same throughout the trials.

The probability that exactly 2 voters will be in favor of the ballot initiative is given by;

If P denotes Success and Q denotes failure;

\rm = ^{5}C_2 \times (0.3)^2 \times (0.70)^3\\\\= 10 \times 0.09 \times 0.343\\\\= 0.309

Hence, the probability that exactly 2 voters will be in favor of the ballot initiative is 0.309.

To know more about Probability click the link given below.

brainly.com/question/20344726

3 0
3 years ago
What is the answer to these two problens
makkiz [27]
1. 64
2. 81
i hope this helped!
6 0
3 years ago
How is the answer 16? Please explain
Viktor [21]
Triangle STU is similar to triangle SVW
so

  TU          ST
------- = ---------- (as you know SV = ST + TV  = 12 + 18 = 30)
  VW       SV
so
  TU          12
------- = ---------- 
  40          30

TU = 12 * 40 / 30
TU = 16

answer
16 inches
7 0
3 years ago
Given m||n, find the value of x.<br><br> (7x-4)<br> (3x+28)º
Furkat [3]

Answer:

8

Step-by-step explanation:

7 x 8 = 56 56 - 4 = 52.

3 x 8 = 24 24 + 28 = 52

4 0
3 years ago
Can someone help me with this
anzhelika [568]

Answer:

See below

Step-by-step explanation:

m=y2-y1/x2-x1

Coordinate 1 - (2, 140)

Coordinate 2 - (4, 280)

280-140/4-2

140/2 = 70

y=70x

8 0
3 years ago
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