The t-distribution has n - 1 degrees of freedom, where n is the sample size.
In this case n = 20. So the required number of degrees of freedom is:
20 - 1 = 19.
The answer is: 19 degrees of freedom.
Answer:
The chance of getting at least 1 tail is 7/8
Step-by-step explanation:
Sample space:
HHH, HHT, HTH, HTT, THH, TTH, TTT, THT
7 of them have tails in them.
The correct answer is: [C]: "2" .
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Explanation:
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Assuming the problem in the question is:
→ " What is: log₁₀ 100 ? " ;
→ which, when 'read aloud' ; is: "What is log base ten of 100<span>" ?
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→ To solve:
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→ " log₁₀ 100 = x " ; → Solve for "x" ;
→ 10ˣ = 100 ; Solve for "x" ;
→ that is; "10 raised to the "x th" power" = 100 " ; → Solve for "x" ;
→ The answer: "x = 2 " ;
→ {since: " 10² = 100" ; since: "10 * 10 = 100" } ;
→ log₁₀ 100 = " 2 " ; → which is: Answer choice: [C]: " 2" .
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Answer: D
Step-by-step explanation:
Lets go equation by equation.
A) Is an upside down parabola shifted up 2 units. It will have to go downwards so its range is not greater than 2 (it is actually y < 2).
B) This is your regular old parabola, moved up two and shifted right 1. This means that since the graph is shifted up two, it will be y >= 2 (because the lowest point will be at y = 2).
C) This is a line shifted up 8 with a slope of 2. This will definitely go to infinity in both directions so it doesn't have a limited range.
D) This is an exponential graph shifted up two units. It will go beyond y = 2 and up to infinity. So, its range is y >2.
Okay so 12 *13 is 156 hope this helps
