Mangoes cost $4 each and nectarines cost $2 each. Dominic buys m mangoes and n nectarines for $32.

There are 154 males and i36 females participating in a marathon. What percent of the particpants are male?

lilavasa [31]

Answer:

154 im pretty sure sorry if wrong Q^Q

Step-by-step explanation:

3 0

3 years ago

The stem and leaf plot here shows the current sale prices

katrin2010 [14]

Answer:

Symmetric

Step-by-step explanation:

In the stem and leaf plot above which represents the current sale prices of houses in dollars, we can observe the shape of the distribution seem like that of a bell shape. Most of the data values are concentrated towards the center compared to the concentration at both extremes.

This implies that most of the current sales price is centered close to the median price of roughly 49/50 dollars.

Therefore, the distribution of housing price can be described as roughly symmetric.

3 0

3 years ago

Help pls?? i have no clue what slope intercept forms are lol

Wittaler [7]

Answer:

See below.

Step-by-step explanation:

The form for slope intercept is y=mx+b, with m being the slope and b being the y-intercept.

In this case, 1/3 is the slope, and -2 is the y-intercept.

The following statements are true:

The line passes through (0,-2).

The line passes through the origin.

-hope it helps

3 0

3 years ago

In Greg's that, he has $1$ yellow, $2$ red, and $3$ green tokens. One red token is equivalent to $7$ yellow tokens. One yellow t

vodka [1.7K]

Answer:

$48 green tokens

Step-by-step explanation:

please check the attached file for explanation

4 0

3 years ago

Read 2 more answers

A researcher wishes to determine whether people with high blood pressure can reduce their blood pressure by following a particul

Vladimir [108]

Answer:

We are 95% confident that the average blood pressure of those who follow the diet is between 6 and 21points lower than the average for those who do not follow the diet.

TRUE, the confidence interval founded was $-21 \leq \mu_t -\mu_c \leq -6$ , on this case makes sense say that the blood pressure for the people with the diet is lower than the control group between 6 and 27 points.

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

2) Select the correct option

The probability that the mean blood pressure for those on the diet is lower than for those not on the diet is 0.95.

FALSE, that's not the correct interpretation for the results obtained on the confidence interval for the difference of means.

We are 95% confident that the average blood pressure of those who follow the diet is between 6 and 21 points higher than the average for those who do not follow the diet.

FALSE, the confidence interval was for $\mu_t -\mu_c$ and we know that $-21 \leq \mu_t -\mu_c \leq -6$ , so no makes sense say that the blood pressure for the people with the diet is higher than the control group.

We are 95% confident that the average blood pressure of those who follow the diet is between 6 and 21 points lower than the average for those who do not follow the diet.

TRUE, the confidence interval founded was $-21 \leq \mu_t -\mu_c \leq -6$ , on this case makes sense say that the blood pressure for the people with the diet is lower than the control group between 6 and 27 points.

Since all of the values in the confidence interval are less than 0, we are unable to conclude that there is a difference in blood pressure for those who follow the diet and those who do not.

FALSE, we are able to conclude about the experiment between the diet and the control group

8 0

3 years ago