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NARA [144]
2 years ago
14

Romeo used a mirror to determine the height of Juliet’s window. He stood 0.5m from the mirror and the mirror is

Mathematics
1 answer:
Volgvan2 years ago
6 0
3. 4m
Explanation:Minus
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A researcher drilled a hole in a die and filled it with a lead​ weight, then proceeded to roll it 209 times. The observed freque
ddd [48]

Answer:

Step-by-step explanation:

Given that the observed frequencies for the outcomes as follows:

To check this we can use chi square goodness of fit test.

H_0: equally likely\\H_a: not equally likely

(Two tailed test at 5% significance level)

Assuming equally likely expected observations are found out and then chi square is calculated as (0-E)^2/E

Df = 6-1 =5

Outcome Frequency Expected frequency (Obs-exp)^2/Exp

   

1 36 34.83333333 0.03907496

2 30 34.83333333 0.670653907

3 41 34.83333333 1.091706539

4 40 34.83333333 0.766347687

5 23 34.83333333 4.019936204

6 39 34.83333333 0.498405104

   

209 209          7.086124402

p value =0.214

Since p >alpha, we accept null hypothesis

It appears that the  loaded die does not behave differently than a fair​ die at 5% level of significance

5 0
3 years ago
If the compound interest paid for rupees 4000 is rupees 420 then find the
Tomtit [17]

Answer:

Amount = Rs4420

Step-by-step explanation:

Given

Principal = Rs4000

Interest = Rs420

Required

Determine the amount paid

This is calculated as:

Amount = Principal + Interest

Amount = Rs4000 + Rs420

Amount = Rs4420

4 0
3 years ago
Find the real and imaginary zeros of the polynomial function G(x)=2-8x
kap26 [50]
For x you insert zero, and
0 = 2 - 8 * 0
0 = 2

5 0
3 years ago
Please help! Insta: bri.editzz0
Law Incorporation [45]

Answer:

1. 18:3

2. 6:1

4 0
3 years ago
Read 2 more answers
A map has a scale of 3 in. = 16 mi. If you measured the distance between two cities to be 23 in. on the map, how many miles woul
Scrat [10]

Answer:

122.667

Step-by-step explanation:

23/3=7.667

7.667*16=122.667

8 0
3 years ago
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