**Answer:**

1.75,0.625

**Step-by-step explanation:**

Given that a couple plans to have children until they get a girl, but they agree that they will not have more than three children even if all are boys.

a) The couples can have

X I girl I boy, II girl I,II boys, III girl I,II,III boys

Pr. 0.5 0.25 0.125 0.125

b) Expected no of children

=

c)Expected number of boys

=

The **probability **that the sample mean will be greater than** 193 mg/dl **is **0.4522**.

<h3>

**z score**</h3>

The** z score i**s used to determine by how many** standard deviations** the** raw score** is above or below the** mean**. It is given by:

Given that:

**μ = 188 mg/dl, σ = 41 mg/dl**

**For x > 193 mg/dl:**

**P(x > 193) =** P(z > 0.12) = 1 - P(z < 0.12) = 1 - 0.5478 = **0.4522**

The **probability **that the sample mean will be greater than** 193 mg/dl **is **0.4522**.

Find out more on **z score **at: brainly.com/question/25638875

**Answer:**

x=50

**Step-by-step explanation:**

2/5x50 + 10 = 30

**Answer:**

False -1

**Step-by-step explanation:**it is both less than 7 and 2 therefore that statement is false