Answer:
The answer is choice 3.
Step-by-step explanation:
I've had this equation b4
Total number of songs in Julie's MP3 player = 860
Percentage of rap songs in Julie's MP3 player = 20%
Then
Number of rap songs in Julie's MP3 player = (20/100) * 860
= 860/5
= 172
Percentage of R&B songs in Julie's MP3 player = 15%
Then
Number of R&B songs in Julie's MP3 player = (15/100) * 860
= 1290/10
= 129
So
The number of other types of songs in Julie's MP3 player = 860 - (172 + 129)
= 860 - 301
= 559
So the number of other types of songs in Julie's MP3 player was 559.
Answer:
x = - 5
Step-by-step explanation:
Using the rule of exponents
• 
⇔ 
Given
= 32
= 32
= 
Since the bases are equal, both 5, equate the exponents
Hence x = - 5
Answer:
d. is the probability distribution showing all possible values of the sample mean.
Step-by-step explanation:
The sampling distribution of the sample means is normal for large sample sizes and samples randomly drawn irrespective of the original distribution of the random variable.
In other words, the probability distribution showing all possible values of the sample mean is the sampling distribution of sample mean. Here sample mean is treated as a random variable and its distribution is discussed.
Hence correct option is
d. is the probability distribution showing all possible values of the sample mean.
12+36=48. So, there would be 36 boys and 12 girls. Hope this helped :)
