Answer:
Degree of freedom = 2
Expected frequency = 80%
Critical value, = 5.991
χ² statistic = 3.5
Step-by-step explanation:
Given the data :
Hong Kong New York Paris
Yes 86% 76% 78%
No 14% 24% 22%
The degree of freedom for the Chisquare statistic is given as :
(no of rows - 1) * (number of columns - 1)
Number of rows = 2
Number of columns = 3
. Degree of freedom = (2-1) * (3-1) = 1*2 = 2
Expected frequency = (Row total * column total) / grand total
The expected frequency of Hong Kong / Yes cell :
Row total = (86+76+78) = 240
Column total = (86+14) = 100
Grand total, N = (14+24+22)+240 = 300
Expected frequency = (240*100)/300 = 80%
The critical value :
At α - level = 0.05 ; df = 2
Critical value = 5.991
χ² = Σ(observed - Expected)² / Expected
The expected values :
80 80 80
20 20 20
Hence,
χ² = Σ(86-80)²/80 + (76-80)²/80 + (78-80)²/80 + (14-20)²/20 + (24-20)²/20 + (22-20)²/20
χ² statistic = 3.5
The distance from the wall was the bullet fired if the gun was held 1.1 m above the floor will be 4.25 meters.
<h3>What is trigonometry?</h3>
Trigonometric functions examine the interaction between the dimensions and angles of a triangular form.
A projectile is tracked down and implanted in the mass of a room 2.2 m over the floor. The shot entered the wall going vertically at a point of 15°.
Because the gaps are so low and the bullet's speed is so high, we may treat the bullet's route as a straight line.
The distance is given as,
⇒ (2.2 - 1.1) / sin 15°
⇒ 1.1 / sin 15°
⇒ 4.25 meters
The distance from the wall was the bullet fired if the gun was held 1.1 m above the floor will be 4.25 meters.
More about the trigonometry link is given below.
brainly.com/question/22698523
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Answer:
( 0.5, -0.5 )
Step-by-step explanation:
M = ( X1 + X2 / 2, Y2 + Y2 / 2 )
M = ( 5 + -4 / 2, 2 + -3 / 2 )
M = ( 1 / 2, -1 / 2 )
Answer:
Step-by-step explanation:
The answer is 0
Answer:
No it is not.
Step-by-step explanation:
Reason.
For geometric: common ratio r should be equal
r = T2/T1 = T3/T2 but is not true here as -6/-14 is not equal to 2/-6
