A class found a report suggesting that teenagers' foot lengths are approximately normally distributed with a mean of 23 cm and a standard deviation of 2.6 cm. They wondered if this held true at their school, so they
took a random sample of n = 9 students. The mean foot length of students in their sample was ä = 24.6 cm.
To see how likely a sample like theirs was to occur by random chance alone, the class performed a simulation.
They simulated 50 samples of n = 9 lengths from a normal population with a mean of 23 cm and standard
deviation of 2.6 cm. They recorded the mean of the lengths in each sample. Here are the sample means from
their 50 samples:

the clues that signal the reader should change tone are the punctuation marks, the grammatical signs. for example, the quotation marks at the beginning of something someone else said literally or the exclamation marks.

the tone of the first line of dialogue until "gettysburg" is a kind tone, a tone of advise. the narrator is trying to the other person in doing something he or she obviously is finding hard to do by giving a piece of advise and bringing up a memory of a successful similar case.

the clue that the reader understand how to read the word "bang" is the exclamation mark. it gives the word a surprise tone, a strong accent.

the best tone for reading the word "bang" is an exciting tone, a surprise one, even a loud one.

the words that should be read with a formal tone are the ones that give factual information. the sentence: mister lincoln couldn't think of anything to say at the gettysburg" gives information about an event and it needs to be read formally, also, when the narrator wants to transmit calmness, a formal and slow tone is needed, because people also transmit messages with the vibrations of our voices and tones.

step-by-step explanation:

36

step-by-step explanation:

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72