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Anna71 [15]
3 years ago
5

A class is made of 3 boys and 12 girls. Half of the girls wear glasses. What is the probability that the student is a girl with

glasses?
Mathematics
1 answer:
BartSMP [9]3 years ago
4 0
6 in 15? I don't really know but that is what I would guess. 
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PLEASE ANSWER 100 PTS AND WILL MARK BRAINLIEST.
timofeeve [1]

Answer:

1

Step-by-step explanation:

We have the graph of f(x).

In order to find f(0), we simply need to find the y-coordinate of the coordinate when x is 0.  

From the graph, we can see that there is a point at (0,1).

In other words, when x is 0, f(x) is 1.

Therefore:

f(0)=1

3 0
3 years ago
Read 2 more answers
The 90% confidence interval for the mean one-way commuting time in New York City is
Zinaida [17]

Answer:

95% provides more information

Step-by-step explanation:

The confidence interval is obtained by using the relation :

Xbar ± Zcritical * σ/√n

(Xbar - (Zcritical * σ/√n)) = 5.22 - - - (1)

(Xbar + (Zcritical * σ/√n)) = 5.98 - - (2)

Adding (1) and (2)

2xbar = 5.22 + 5.98

2xbar = 11.2

xbar = 11.2 / 2 = 5.6

Margin of Error :

Xbar - lower C.I = Zcritical * σ/√n

Zcritical at 90% = 1.645

5.6 - 5.22 = 1.645 * (σ/√n)

0.38 = 1.645 * (σ/√n)

(σ/√n) = 0.38 / 1.645 = 0.231

Therefore, using the se parameters to construct at 95%

Zcritical at 95% = 1.96

Margin of Error = Zcritical * σ/√n

Margin of Error = 1.96 * 0.231 = 0.45276

C.I = xbar ± margin of error

C. I = 5.6 ± 0.45276

C.I = (5.6 - 0.45276) ; (5.6 + 0.45276)

C. I = (5.147 ; 6.053)

Hence, 95% confidence interval provides more information as it is wider.

3 0
3 years ago
Kyle brough a case of 24 12 ounce bottles of water.He drank the same amount of water each day and finished the case after 3 days
Anastaziya [24]

Answer:

96 ounces each day

Step-by-step explanation:

Divide the 24 bottles by 3

24/3 = 8

8bottles per day

8 bottles *12 ounces per bottle

96 ounces each day

3 0
3 years ago
Which is the graph of f(x) = StartRoot x EndRoot?
Bingel [31]

The equation of the graph of f(x) = \sqrt x is (d) on a coordinate plane, an absolute value graph starts at (0, 0) and goes up through (4, 2).

The equation of the graph is represented as:

  • f(x) = \sqrt x

See attachment for the graph of f(x) = \sqrt x

From the attached graph, the curve passes through points (0,0) and (4,2).

Hence, the equation of the graph of f(x) = \sqrt x is (d)

Read more about graphs and functions at:

brainly.com/question/3939432

8 0
3 years ago
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30m^2+27m-20=0. It’s quad
9966 [12]

Answer:

m=−920+−1603129

Step-by-step explanation:

3 0
3 years ago
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