Answer:
I'm here! This Problem is easy :) The answer is 4
Step-by-step explanation:
2x+10=5x−2
<em>Subtract </em>5x from both sides
2x+10−5x=−2
<em>Combine</em> 2x and −5x to get −3x.
−3x+10=−2
Subtract 10 from <em>both sides.</em>
−3x=−12
<em>Divide</em> both sides by −3.
Divide −12 by −3 to get 4.
x = 4 (D)
Answer:
The data speed 1.4Mbps is in the 34th percentile.
Step-by-step explanation:
To find the percentile of a value X in a data set, we divide the number of values lesser than X in the data set by the total number of values in the data set, and then multiply by 100.
In this set
There are 17 values lesser than 1.4
There are 50 values in all.
So
The data speed 1.4Mbps is in the 34th percentile.
Answer:
a) 0.0256 = 2.56% probability of 4 heads.
0.1296 = 12.96% probability of 4 tails.
b) The probability is 0.0576 = 5.76%.
c) 6 outcomes given 2 heads in 4 tosses. 0.3456 = 34.56% probability of 2 heads in 4 tosses
Step-by-step explanation:
For each throw, we have these following probabilities:
0.4 = 40% probability of heads.
0.6 = 60% probability of tails.
(a) Compare the probability of 4 heads in 4 tosses and 4 tails in 4 tosses.
4 heads:
4 throws, each with 0.4 probability of heads. So
0.0256 = 2.56% probability of 4 heads.
4 tails:
4 throws, each with 0.6 probability of tails. So
0.1296 = 12.96% probability of 4 tails.
(b) Determine the probability of H T H T in 4 tosses.
H = 0.4, T = 0.6. So
The probability is 0.0576 = 5.76%.
(c) Determine the number of outcomes that give us 2 heads in 4 tosses in any order. What is the probability of 2 heads in 4 tosses (use (b) and the number of outcomes)
Number of outcomes:
The possible outcomes are:
H - H - T - T
H - T - H - T
H - T - T - H
T - H - H - T
T - H - T - H
T - T - H - H
6 outcomes given 2 heads in 4 tosses.
Each with probability 0.0576, as found in b)
6*0.0576 = 0.3456
0.3456 = 34.56% probability of 2 heads in 4 tosses